week13 add video & summary

content/WeeklyAssignments/week13.md

@@ -15,7 +15,7 @@ on polymer, as rigid as possible.
 
 <div class="row">
   <div class="col-md-6 align-self-center" markdown="1" >
-    <img src = "./img/week13/Mold_Final.jpg" alt = "MoldFinal"
+    <img src = "./img/week13/Mold_Creation_Printed.jpg" alt = "MoldFinal"
 class="mx-auto d-block">
   </div>
   <div class="col-md-6 align-self-center" markdown="1" >
@@ -215,7 +215,11 @@ class="mx-auto d-block" >
 
 Below is a short video showing the bubbles escaping from the polymer.
 
-*add video*
+<center>
+    <video width=50% controls muted loop>
+        <source src="./vid/week13/Casting_Bubble.mp4" type=video/mp4>
+    </video>
+</center>
 
 After about twenty minutes under vacuum, I can take my container out of the
 vacuum chamber and fill my mould. The mould is fixed beforehand so