Update README

Author: peter-evans

README.md

@@ -26,7 +26,11 @@ Dispatching commands to be processed elsewhere keeps the workflow queue moving q
 
 ### Demo
 
+The best way to understand how this works is to try it out for yourself.
+Check out the following demos.
 
+- [ChatOps Demo in Issues](https://github.com/peter-evans/slash-command-dispatch/issues/1)
+- [ChatOps Demo in Pull Requests](https://github.com/peter-evans/slash-command-dispatch/pull/2)
 
 ## Dispatching commands