update contribution guidelines

CONTRIBUTING.md

@@ -1,15 +1,20 @@
 ## Contributing
 
-Please keep the [issue tracker](http://github.com/hakimel/reveal.js/issues) limited to **bug reports**, **feature requests** and **pull requests**. If you are reporting a bug make sure to include information about which browser and operating system you are using as well as the necessary steps to reproduce the issue.
+Please keep the [issue tracker](http://github.com/hakimel/reveal.js/issues) limited to **bug reports**, **feature requests** and **pull requests**.
 
-If you have personal support questions use [StackOverflow](http://stackoverflow.com/questions/tagged/reveal.js).
 
+### Personal Support
+If you have personal support or setup questions the best place to ask those are  [StackOverflow](http://stackoverflow.com/questions/tagged/reveal.js).
 
-### Pull requests
 
+### Bug Reports
+When reporting a bug make sure to include information about which browser and operating system you are on as well as the necessary steps to reproduce the issue. If possible please include a link to a sample presentation where the bug can be tested.
+
+
+### Pull Requests
 - Should follow the coding style of the file you work in, most importantly:
   - Tabs to indent
   - Single-quoted strings
 - Should be made towards the **dev branch**
 - Should be submitted from a feature/topic branch (not your master)
-- Should not include the minified **reveal.min.js** or **reveal.min.css** files
+- Should not include the minified **reveal.min.js** or **reveal.min.css** files