Add a block mentioning a jsfiddle that should be used for issue reporting

Author: ValentinH

README.md

@@ -9,6 +9,10 @@ Slider directive implementation for AngularJS, without any dependencies.
 - Simple to use
 - Compatibility with jQuery Lite, ie. with full jQuery ( Thanks Jusas! https://github.com/Jusas)
 
+## Reporting issues
+Make sure the report is accompanied by a reproducible demo. The ideal demo is created by forking [our standard jsFiddle](http://jsfiddle.net/pq7yr6d6/), adding your own code and stripping it down to an absolute minimum needed to demonstrate the bug.
+
+
 ## Examples
 
 [http://rzajac.github.io/angularjs-slider/](http://rzajac.github.io/angularjs-slider/)