Minor improvements to documentation

Docs/faq.md

@@ -30,6 +30,6 @@ Once you open the project in the Unreal Editor, you can hit Play to test CARLA.
 #### How can I create a binary version of CARLA?
 
 To compile a binary (packaged) version of CARLA, open the CarlaUE4 project with
-Unreal Editor, go to the menu “File -> Package Project”, and select your
+Unreal Editor, go to the menu "File -> Package Project", and select your
 platform. This takes a while, but in the end it should generate a packaged
 version of CARLA to execute without Unreal Editor.

README.md

@@ -55,6 +55,13 @@ Felipe Codevilla, Antonio Lopez, Vladlen Koltun; PMLR 78:1-16
 }
 ```
 
+Contributing
+------------
+
+Please take a look at our [Contribution guidelines][contriblink].
+
+[contriblink]: http://carla.readthedocs.io/en/latest/CONTRIBUTING
+
 License
 -------