diff --git a/404.html b/404.html
index ce83a07..f5a4041 100644
--- a/404.html
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-  "dateCreated": "2024-02-28",
-  "dateModified": "2024-02-28",
-  "datePublished": "2024-02-28"
+  "dateCreated": "2024-02-29",
+  "dateModified": "2024-02-29",
+  "datePublished": "2024-02-29"
 }
 
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diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index 8283fc4..aec9e2a 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
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   "identifier": "https://carpentries-incubator.github.io/SDC-BIDS-IntroMRI/CODE_OF_CONDUCT.html",
-  "dateCreated": "2024-02-28",
+  "dateCreated": "2024-02-29",
   "dateModified": "2024-02-18",
-  "datePublished": "2024-02-28"
+  "datePublished": "2024-02-29"
 }
 
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diff --git a/LICENSE.html b/LICENSE.html
index 7b64902..fccbd60 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -385,9 +385,9 @@ <h1>Licenses</h1>
   "creativeWorkStatus": "active",
   "url": "https://carpentries-incubator.github.io/SDC-BIDS-IntroMRI/LICENSE.html",
   "identifier": "https://carpentries-incubator.github.io/SDC-BIDS-IntroMRI/LICENSE.html",
-  "dateCreated": "2024-02-28",
+  "dateCreated": "2024-02-29",
   "dateModified": "2024-02-18",
-  "datePublished": "2024-02-28"
+  "datePublished": "2024-02-29"
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diff --git a/aio.html b/aio.html
index 3959a63..e525f5f 100644
--- a/aio.html
+++ b/aio.html
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 <button class="accordion-button solution-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="#collapseSolution1" aria-expanded="false" aria-controls="collapseSolution1">
   <h4 class="accordion-header" id="headingSolution1">Show me the solution</h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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@@ -651,7 +651,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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 </section></section><section id="aio-anatomy-of-nifti"><p>Content from <a href="anatomy-of-nifti.html">Anatomy of a NIfTI</a></p>
 <hr>
-<p>Last updated on 2024-02-28 |
+<p>Last updated on 2024-02-29 |
         
         <a href="https://github.com/carpentries-incubator/SDC-BIDS-IntroMRI/edit/main/episodes/anatomy-of-nifti.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <div class="text-end">
@@ -872,7 +872,7 @@ <h3 class="callout-title">Extract values from the NIfTI header<a class="anchor"
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-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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@@ -1142,10 +1142,9 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </h2>
 <hr class="half-width">
 <p>Slicing does exactly what it seems to imply. Giving our 3D volume, we
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-to right (sagittal slicing):</p>
-<figure><img src="fig/T1w.gif" class="figure mx-auto d-block"></figure><p>This gif is a series of 2D images or <strong>slices</strong> moving
-from left to right.</p>
+pull out a 2D <strong>slice</strong> of our data.</p>
+<p><img src="fig/T1w.gif" class="figure"> From left to right: sagittal, coronal and
+axial slices.</p>
 <p>Let’s pull the 10th slice in the x axis.</p>
 <div class="codewrapper sourceCode" id="cb24">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
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 }
 
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diff --git a/anatomy-of-nifti.html b/anatomy-of-nifti.html
index 0d87a6a..598cfa5 100644
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       </div>
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         <h1>Anatomy of a NIfTI</h1>
-        <p>Last updated on 2024-02-28 |
+        <p>Last updated on 2024-02-29 |
         
         <a href="https://github.com/carpentries-incubator/SDC-BIDS-IntroMRI/edit/main/episodes/anatomy-of-nifti.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -488,7 +488,7 @@ <h3 class="callout-title">Extract values from the NIfTI header<a class="anchor"
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 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb8">
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@@ -641,7 +641,7 @@ <h3 class="callout-title">Check out attributes of the array<a class="anchor" ari
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@@ -756,10 +756,9 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </section><section id="working-with-image-data"><h2 class="section-heading">Working with image data<a class="anchor" aria-label="anchor" href="#working-with-image-data"></a>
 </h2>
 <hr class="half-width"><p>Slicing does exactly what it seems to imply. Giving our 3D volume, we
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-to right (sagittal slicing):</p>
-<figure><img src="fig/T1w.gif" class="figure mx-auto d-block"></figure><p>This gif is a series of 2D images or <strong>slices</strong> moving
-from left to right.</p>
+pull out a 2D <strong>slice</strong> of our data.</p>
+<p><img src="fig/T1w.gif" class="figure"> From left to right: sagittal, coronal and
+axial slices.</p>
 <p>Let’s pull the 10th slice in the x axis.</p>
 <div class="codewrapper sourceCode" id="cb24">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -787,7 +786,7 @@ <h3 class="callout-title">Slicing MRI data<a class="anchor" aria-label="anchor"
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-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
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-  "dateCreated": "2024-02-28",
-  "dateModified": "2024-02-28",
-  "datePublished": "2024-02-28"
+  "dateCreated": "2024-02-29",
+  "dateModified": "2024-02-29",
+  "datePublished": "2024-02-29"
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diff --git a/before-we-start.html b/before-we-start.html
index 64bca43..d456bf9 100644
--- a/before-we-start.html
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   "identifier": "https://carpentries-incubator.github.io/SDC-BIDS-IntroMRI/before-we-start.html",
-  "dateCreated": "2024-02-28",
+  "dateCreated": "2024-02-29",
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diff --git a/bids-derivatives.html b/bids-derivatives.html
index 281b931..1990e90 100644
--- a/bids-derivatives.html
+++ b/bids-derivatives.html
@@ -403,9 +403,9 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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   "identifier": "https://carpentries-incubator.github.io/SDC-BIDS-IntroMRI/bids-derivatives.html",
-  "dateCreated": "2024-02-28",
+  "dateCreated": "2024-02-29",
   "dateModified": "2024-02-28",
-  "datePublished": "2024-02-28"
+  "datePublished": "2024-02-29"
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diff --git a/data-organization-bids.html b/data-organization-bids.html
index fcaefd2..8aa4b56 100644
--- a/data-organization-bids.html
+++ b/data-organization-bids.html
@@ -406,9 +406,9 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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   "identifier": "https://carpentries-incubator.github.io/SDC-BIDS-IntroMRI/data-organization-bids.html",
-  "dateCreated": "2024-02-28",
+  "dateCreated": "2024-02-29",
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diff --git a/discuss.html b/discuss.html
index 5f89304..8e14732 100644
--- a/discuss.html
+++ b/discuss.html
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   "identifier": "https://carpentries-incubator.github.io/SDC-BIDS-IntroMRI/discuss.html",
-  "dateCreated": "2024-02-28",
+  "dateCreated": "2024-02-29",
   "dateModified": "2024-02-18",
-  "datePublished": "2024-02-28"
+  "datePublished": "2024-02-29"
 }
 
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diff --git a/images.html b/images.html
index 9e4b50a..6e90080 100644
--- a/images.html
+++ b/images.html
@@ -334,7 +334,9 @@ <h3 id="anatomy-of-nifti-figure-2">Figure 2</h3>
 What about the how big each dimension is (shape)?</p>
 <hr>
 <h3 id="anatomy-of-nifti-figure-3">Figure 3</h3>
-<figure><img src="fig/T1w.gif" class="figure mx-auto d-block"></figure><hr>
+<p><img src="fig/T1w.gif" class="figure"> From left to right: sagittal, coronal and
+axial slices.</p>
+<hr>
 <h3 id="anatomy-of-nifti-figure-4">Figure 4</h3>
 <figure><img src="fig/coordinate_systems.png" class="figure mx-auto d-block"></figure><hr></section><section id="data-organization-bids"><h2 class="section-heading"><a href="data-organization-bids.html">Data organization with BIDS</a></h2>
 <hr class="half-width"></section><section id="open-mri-datasets"><h2 class="section-heading"><a href="open-mri-datasets.html">Exploring open MRI datasets</a></h2>
@@ -388,9 +390,9 @@ <h3 id="bids-derivatives-figure-1">Figure 1</h3>
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   "identifier": "https://carpentries-incubator.github.io/SDC-BIDS-IntroMRI/images.html",
-  "dateCreated": "2024-02-28",
-  "dateModified": "2024-02-28",
-  "datePublished": "2024-02-28"
+  "dateCreated": "2024-02-29",
+  "dateModified": "2024-02-29",
+  "datePublished": "2024-02-29"
 }
 
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diff --git a/index.html b/index.html
index bd72ce2..51f9199 100644
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-  "dateCreated": "2024-02-28",
-  "dateModified": "2024-02-28",
-  "datePublished": "2024-02-28"
+  "dateCreated": "2024-02-29",
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+  "datePublished": "2024-02-29"
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diff --git a/instructor-notes.html b/instructor-notes.html
index ed5bb47..8917cc4 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -355,9 +355,9 @@ <h1>Instructor Notes</h1>
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-  "dateCreated": "2024-02-28",
-  "dateModified": "2024-02-28",
-  "datePublished": "2024-02-28"
+  "dateCreated": "2024-02-29",
+  "dateModified": "2024-02-29",
+  "datePublished": "2024-02-29"
 }
 
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index 66f83a9..d5bcb3b 100644
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-  "dateModified": "2024-02-28",
-  "datePublished": "2024-02-28"
+  "dateCreated": "2024-02-29",
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index 812fc0b..105226a 100644
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-  "dateCreated": "2024-02-28",
+  "dateCreated": "2024-02-29",
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+  "datePublished": "2024-02-29"
 }
 
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diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 5e67d8f..15039b9 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -387,9 +387,9 @@ <h1>Licenses</h1>
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   "identifier": "https://carpentries-incubator.github.io/SDC-BIDS-IntroMRI/instructor/LICENSE.html",
-  "dateCreated": "2024-02-28",
+  "dateCreated": "2024-02-29",
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+  "datePublished": "2024-02-29"
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diff --git a/instructor/aio.html b/instructor/aio.html
index 2945167..719ff42 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -625,7 +625,7 @@ <h3 class="callout-title">Converting DICOM to NIfTI<a class="anchor" aria-label=
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 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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@@ -655,7 +655,7 @@ <h3 class="callout-title">Key Points<a class="anchor" aria-label="anchor" href="
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 </section></section><section id="aio-anatomy-of-nifti"><p>Content from <a href="anatomy-of-nifti.html">Anatomy of a NIfTI</a></p>
 <hr>
-<p>Last updated on 2024-02-28 |
+<p>Last updated on 2024-02-29 |
         
         <a href="https://github.com/carpentries-incubator/SDC-BIDS-IntroMRI/edit/main/episodes/anatomy-of-nifti.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
 <p>Estimated time: <i aria-hidden="true" data-feather="clock"></i> 25 minutes</p>
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@@ -1147,10 +1147,9 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </h2>
 <hr class="half-width">
 <p>Slicing does exactly what it seems to imply. Giving our 3D volume, we
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-from left to right.</p>
+pull out a 2D <strong>slice</strong> of our data.</p>
+<p><img src="../fig/T1w.gif" class="figure"> From left to right: sagittal, coronal and
+axial slices.</p>
 <p>Let’s pull the 10th slice in the x axis.</p>
 <div class="codewrapper sourceCode" id="cb24">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
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diff --git a/instructor/anatomy-of-nifti.html b/instructor/anatomy-of-nifti.html
index c23ed80..f3fe8d3 100644
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         <h1>Anatomy of a NIfTI</h1>
-        <p>Last updated on 2024-02-28 |
+        <p>Last updated on 2024-02-29 |
         
         <a href="https://github.com/carpentries-incubator/SDC-BIDS-IntroMRI/edit/main/episodes/anatomy-of-nifti.md" class="external-link">Edit this page <i aria-hidden="true" data-feather="edit"></i></a></p>
         
@@ -490,7 +490,7 @@ <h3 class="callout-title">Extract values from the NIfTI header<a class="anchor"
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@@ -758,10 +758,9 @@ <h3 class="code-label">OUTPUT<i aria-hidden="true" data-feather="chevron-left"><
 </section><section id="working-with-image-data"><h2 class="section-heading">Working with image data<a class="anchor" aria-label="anchor" href="#working-with-image-data"></a>
 </h2>
 <hr class="half-width"><p>Slicing does exactly what it seems to imply. Giving our 3D volume, we
-pull out a 2D slice of our data. Here’s an example of slicing from left
-to right (sagittal slicing):</p>
-<figure><img src="../fig/T1w.gif" class="figure mx-auto d-block"></figure><p>This gif is a series of 2D images or <strong>slices</strong> moving
-from left to right.</p>
+pull out a 2D <strong>slice</strong> of our data.</p>
+<p><img src="../fig/T1w.gif" class="figure"> From left to right: sagittal, coronal and
+axial slices.</p>
 <p>Let’s pull the 10th slice in the x axis.</p>
 <div class="codewrapper sourceCode" id="cb24">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -789,7 +788,7 @@ <h3 class="callout-title">Slicing MRI data<a class="anchor" aria-label="anchor"
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-  "datePublished": "2024-02-28"
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index 413c72c..4c43151 100644
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index 0ecde7f..70b8399 100644
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-  "dateCreated": "2024-02-28",
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index f10f00e..4fedc9f 100644
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   "identifier": "https://carpentries-incubator.github.io/SDC-BIDS-IntroMRI/instructor/discuss.html",
-  "dateCreated": "2024-02-28",
+  "dateCreated": "2024-02-29",
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diff --git a/instructor/images.html b/instructor/images.html
index 10d67e8..1c8d122 100644
--- a/instructor/images.html
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@@ -336,7 +336,9 @@ <h3 id="anatomy-of-nifti-figure-2">Figure 2</h3>
 What about the how big each dimension is (shape)?</p>
 <hr>
 <h3 id="anatomy-of-nifti-figure-3">Figure 3</h3>
-<figure><img src="../fig/T1w.gif" class="figure mx-auto d-block"></figure><hr>
+<p><img src="../fig/T1w.gif" class="figure"> From left to right: sagittal, coronal and
+axial slices.</p>
+<hr>
 <h3 id="anatomy-of-nifti-figure-4">Figure 4</h3>
 <figure><img src="../fig/coordinate_systems.png" class="figure mx-auto d-block"></figure><hr></section><section id="data-organization-bids"><h2 class="section-heading"><a href="data-organization-bids.html">Data organization with BIDS</a></h2>
 <hr class="half-width"></section><section id="open-mri-datasets"><h2 class="section-heading"><a href="open-mri-datasets.html">Exploring open MRI datasets</a></h2>
@@ -390,9 +392,9 @@ <h3 id="bids-derivatives-figure-1">Figure 1</h3>
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-  "datePublished": "2024-02-28"
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-  "dateModified": "2024-02-28",
-  "datePublished": "2024-02-28"
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diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index cede477..7b7fa3c 100644
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-  "datePublished": "2024-02-28"
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-  "datePublished": "2024-02-28"
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index 9ec2983..bb9a05b 100644
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index 765294d..d363279 100644
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-  "datePublished": "2024-02-28"
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index 18368e3..d79eb11 100644
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diff --git a/key-points.html b/key-points.html
index a58e431..2760c88 100644
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-  "dateModified": "2024-02-28",
-  "datePublished": "2024-02-28"
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diff --git a/md5sum.txt b/md5sum.txt
index cad0dc2..01eb1f2 100644
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 "episodes/bids-derivatives.md" "a28d2d7028745132a267f703f7317f98" "site/built/bids-derivatives.md" "2024-02-28"
diff --git a/open-mri-datasets.html b/open-mri-datasets.html
index c8a3eec..d1b0a89 100644
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index 744d296..b877627 100644
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index b61be22..36b4431 100644
--- a/profiles.html
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@@ -286,9 +286,9 @@ <h1>Learner Profiles</h1>
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-  "dateCreated": "2024-02-28",
-  "dateModified": "2024-02-28",
-  "datePublished": "2024-02-28"
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diff --git a/reference.html b/reference.html
index c93d441..187ca74 100644
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@@ -327,9 +327,9 @@ <h1>Glossary</h1>
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-  "dateCreated": "2024-02-28",
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index 444cda9..7f58574 100644
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