diff --git a/R/render_new_rmds_to_md.R b/R/render_new_rmds_to_md.R
index 29cd485..ea546f1 100644
--- a/R/render_new_rmds_to_md.R
+++ b/R/render_new_rmds_to_md.R
@@ -51,7 +51,7 @@ render_new_rmds_to_md <- function(dir = "content/post",
     for (b in to_build) {
       rmd <- b
       rmarkdown::render(rmd,
-                        rmarkdown::md_document(variant = "markdown_github",
+                        rmarkdown::md_document(variant = "gfm",
                                                preserve_yaml = TRUE ))
     }
   }else{
diff --git a/content/post/test-buttons.Rmd b/content/post/test-buttons.Rmd
index 7d5e7c3..ab61407 100644
--- a/content/post/test-buttons.Rmd
+++ b/content/post/test-buttons.Rmd
@@ -20,9 +20,9 @@ https://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_collapsible&stacked
   <p>Click on the button to toggle between showing and hiding content.</p>
   <button type="button" class="btn btn-info" data-toggle="collapse" data-target="#demo">Simple collapsible</button>
   <div id="demo" class="collapse">
-    Lorem ipsum dolor sit amet, consectetur adipisicing elit,
-    sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
-    quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
+Lorem ipsum dolor sit amet, consectetur adipisicing elit,
+sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
+quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
   </div>
 </div>
 
diff --git a/content/post/test-buttons.md b/content/post/test-buttons.md
index 2ee4476..d308db2 100644
--- a/content/post/test-buttons.md
+++ b/content/post/test-buttons.md
@@ -1,41 +1,28 @@
 ---
 title: "Test collapse button"
 author: "Thibaut Jombart"
-authors: ["Thibaut Jombart", "Janetta Skarp", "Zhian N. Kamvar", "Alexander Spina", "Patrick Keating"]
+authors: "Thibaut Jombart"
 date: 2018-10-24
 licenses: CC-BY
+categories: "case study"
+slug: button-test
 image: img/highres/graduation-1965.jpg
 showonlyimage: true
 ---
 
 Here is an attempt at collapse button, taken from:
-
 <https://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_collapsible&stacked=h>
 
-<!-- This one will work: -->
-
-<!-- <div class="container"> -->
-<!--   <h2>Simple Collapsible</h2> -->
-<!--   <p>Click on the button to toggle between showing and hiding content.</p> -->
-<!--   <button type="button" class="btn btn-info" data-toggle="collapse" data-target="#demo">Simple collapsible</button> -->
-<!--   <div id="demo" class="collapse"> -->
-<!--     Lorem ipsum dolor sit amet, consectetur adipisicing elit, -->
-<!--     sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, -->
-<!--     quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. -->
-<!--   </div> -->
-<!-- </div> -->
-
-
-
 <h2>
 Simple Collapsible
 </h2>
 <p>
 Click on the button to toggle between showing and hiding content.
 </p>
-<button type="button" class="btn btn-info" data-toggle="collapse" data-target="#demo">
-Simple collapsible
-</button>
-    Lorem ipsum dolor sit amet, consectetur adipisicing elit,
-    sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam,
-    quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
+<button type="button" class="btn btn-info" data-toggle="collapse" data-target="#demo">Simple
+collapsible</button>
+
+Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod
+tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
+veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea
+commodo consequat.