Let's see if this fixes the path issue in heat equation

Author: fusion809

heatEqAttempt.md

@@ -196,7 +196,7 @@ mp4(anim, joinpath(@OUTPUT, "heat.mp4"), fps = 1/Deltat)
 
 ~~~
 <video width="800" controls>
-  <source src="./assets/heatEqAttempt/code/output/heat.mp4" type="video/mp4">
+  <source src="/assets/heatEqAttempt/code/output/heat.mp4" type="video/mp4">
   Your browser does not support the video tag.
 </video>
 ~~~