Update contributing.md

Author: deltakosh

contributing.md

@@ -14,7 +14,7 @@ That's why many of the guidelines of this document are obvious and serve only on
 Every contribution has to come with:
 
 * Before starting coding, **you should open an issue** and start discussing with the community to see if your idea/feature is interesting enough
-* A documentation page in the [documentation folder](https://github.com/Microsoft/UWPCommunityToolkit/tree/dev/docs)
+* A documentation page in the [documentation folder](https://github.com/Microsoft/UWPCommunityToolkit/tree/dev/docs). Once valdied your documentation will be visible [here](http://docs.uwpcommunitytoolkit.com/en/dev/)
 * A sample for the [Sample app](https://github.com/Microsoft/UWPCommunityToolkit/tree/master/Microsoft.Toolkit.Uwp.SampleApp) (If applicable)
 * Unit tests (If applicable)
 * You tested your code with SDK 10586 and SDK 14393