Embed new Kit Assembly video

Author: sedders123

kit/assembly.md

@@ -65,7 +65,7 @@ The following video contains an overview which covers the [brain board](/docs/ki
 <iframe class="video center"
         height="315"
         width="560"
-        src="https://www.youtube-nocookie.com/embed/vhZjjCdhVE0?rel=0"
+        src="https://www.youtube-nocookie.com/embed/HQmL_3giLvc?rel=0"
         frameborder="0"
         allowfullscreen>
 </iframe>