Update README.md

Author: jessesquires

README.md

@@ -152,7 +152,7 @@ Without CocoaPods:
 
 ## Questions & Help
 
-There's [a label](https://github.com/jessesquires/JSQMessagesViewController/labels/questions%20&%20help) for that. Before asking a question, see if it has [already been answered](https://github.com/jessesquires/JSQMessagesViewController/issues?q=label%3A%22questions+%26+help%22+is%3Aclosed).
+There's [a label](https://github.com/jessesquires/JSQMessagesViewController/labels/questions%20&%20help) for that. Before asking a question, see if it has [already been answered](https://github.com/jessesquires/JSQMessagesViewController/issues?q=label%3A%22questions+%26+help%22+is%3Aclosed). **Please only ask questions that are _specific_ to this library.**
 
 >**NOTE:** Please try to avoid emailing me with questions. I prefer to keep questions and their answers open-source.