Fix type

_includes/lab10-new.html

@@ -103,9 +103,9 @@ <h1 class="title">Contents</h1>
             class="toc-section-number">3.7.3</span> Prelab
             Question</a></li>
             </ul></li>
-            <li><a href="#opto-isalated-relay-switch"
-            id="toc-opto-isalated-relay-switch"><span
-            class="toc-section-number">3.8</span> Opto-isalated Relay
+            <li><a href="#opto-isoated-relay-switch"
+            id="toc-opto-isoated-relay-switch"><span
+            class="toc-section-number">3.8</span> Opto-isoated Relay
             Switch</a>
             <ul>
             <li><a href="#7.1" id="toc-7.1"><span
@@ -786,8 +786,8 @@ <h3 data-number="3.7.3" id="6.3"><span
          <li><p>What is the current through the coil in the on
          state?</p></li>
          </ol>
-         <h2 data-number="3.8" id="opto-isalated-relay-switch"><span
-         class="header-section-number">3.8</span> Opto-isalated Relay
+         <h2 data-number="3.8" id="opto-isoated-relay-switch"><span
+         class="header-section-number">3.8</span> Opto-isoated Relay
          Switch</h2>
          <div id="fig:opto-isolated-relay" class="fignos">
          <figure>
@@ -903,7 +903,7 @@ <h1 data-number="4" id="useful-readings"><span
          discussions: these are typically extremely helpful).</li>
          </ul></li>
          </ul></li>
-         <li><p>Open Cicuits has lots of nice relevant teardowns:</p>
+         <li><p>Open Circuits has lots of nice relevant teardowns:</p>
          <ul>
          <li>76–83, 86–88 to see inside the ICs and the LED</li>
          <li>96 to see inside the optocoupler</li>
@@ -1076,7 +1076,7 @@ <h2 data-number="5.3" id="led-bank"><span
          <h2 data-number="5.4" id="opto-isolated-relay-control"><span
          class="header-section-number">5.4</span> Opto-isolated Relay
          Control</h2>
-         <p>Now you will build the circuit in <a
+         <p>Now you will build the circuit in Figure <a
          href="#fig:opto-isolated-relay">6</a> with the values of
          resistors you calculated in the prelab (you may want to
          corroborate with your peers or check with an instructor to

raw-content/lab10new-raw.md

@@ -317,7 +317,7 @@ Since it is likely that a circuit you build will involve an op-amp, and your exp
 
 3. What is the current through the coil in the on state?
 
-## Opto-isalated Relay Switch
+## Opto-isoated Relay Switch
 
 ![Relay control with an optocoupler isolating the Arduino and an NPN transistor used as a switch.](../resources/lab10fig/relay-control-circuit2.png){#fig:opto-isolated-relay}
 
@@ -375,7 +375,7 @@ List at least one question you have about the lab activity.
       - [Instructables Arduino projects.](https://www.instructables.com/Arduino-Projects/)
       - Your search engine of choice (look out for stackexchange discussions: these are typically extremely helpful).
 
-3. Open Cicuits has lots of nice relevant teardowns:
+3. Open Circuits has lots of nice relevant teardowns:
    -  76--83, 86--88 to see inside the ICs and the LED
    -  96 to see inside the optocoupler
    -  105--135 to see inside electromechanical objects (all of these are things that could be controlled by an Arduino project)
@@ -490,7 +490,7 @@ will print this to the serial monitor:
 
 ## Opto-isolated Relay Control
 
-Now you will build the circuit in @fig:opto-isolated-relay with the values of resistors you calculated in the prelab (you may want to corroborate with your peers or check with an instructor to confirm your calculations make sense).
+Now you will build the circuit in Figure @fig:opto-isolated-relay with the values of resistors you calculated in the prelab (you may want to corroborate with your peers or check with an instructor to confirm your calculations make sense).
 
 -  The datasheet for the optocoupler (SFH615) has incorrect information on the orientation of the DIP chip. Figure @fig:opto-dip shows the correct orientation with a notch cut out of the left side of the DIP chip.