message: Fixed social media icons
diff: @@ -716,7 +716,7 @@ Licensed under the [Apache License, Version 2.0](License.txt)
  [diligentgraphics.com](http://diligentgraphics.com)
  -[media/twitter.png](https://twitter.com/diligentengine) [media/facebook.png](https://www.facebook.com/DiligentGraphics/)
  +[![Diligent Engine on Twitter](media/twitter.png)](https://twitter.com/diligentengine) [![Diligent Engine on Facebook](media/facebook.png)](https://www.facebook.com/DiligentGraphics/)
  [1]: https://cdn.rawgit.com/DiligentGraphics/DiligentCore/4949ec8a/doc/html/index.html
  