Update 12-mkaburis-gitdemo.md

obiwan octocat

Author: mkaburis-esri

_slides/12-mkaburis-gitdemo.md

@@ -5,5 +5,6 @@ title: "Welcome to our slide deck!"
 
 A huge fan of urban exploration, reading and public transit!
 
-![cooler-octocat](https://octodex.github.com/images/twenty-percent-cooler-octocat.png)
+![obiwan-octocat](https://octodex.github.com/images/octobiwan.jpg)
+
 {: .center}