Update Chapter3.md

Author: armBookCodeExamples

Videos/Chapter3.md

@@ -1,11 +1,11 @@
 ## Chapter 3 Examples
 
-The following video shows the functionallity that is gradually built from Example 2.1 to Example 2.5:
+The following video shows the functionallity that is gradually built from Example 3.1 to Example 3.5:
 
 <div align="left">
-      <a href="https://www.youtube.com/watch?v=nnXCHKm1Pf0">
-         <img src="https://img.youtube.com/vi/nnXCHKm1Pf0/0.jpg" style="width:45%;">
+      <a href="https://youtu.be/XqUvWGD-5NA">
+         <img src="https://img.youtube.com/vi/XqUvWGD-5NA/0.jpg" style="width:45%;">
       </a>
 </div>
 
-Video credits: María Eloísa Tourret & Camila Belen Silva Sabarots.
+Video credits: María Eloísa Tourret & Camila Belen Silva Sabarots.}