Change StackOverflow with Forums

Author: EmilStoychev

.github/ISSUE_TEMPLATE.md

@@ -1,7 +1,7 @@
 PSST! Want to get faster responses to bug reports and important issues? Help us keep the issue tracker organized by:
 
-- Reporting bugs. Please include all details about the problem and provide a sample app.
+- Reporting bugs. Please include all details about the problem and provide a sample app (consider using the [playground](https://play.nativescript.org) for this.
 - Proposing features and enhancements.
 - Discussing implementation details.
 
-Please move all other content to [Stack Overflow](http://stackoverflow.com/questions/tagged/nativescript).
+Please move all other content to the [forums](http://forum.nativescript.org).