message: docs: improve grammar and wording on CONTRIBUTING.md
diff: @@ -17,7 +17,7 @@ Help us keep Angular open and inclusive. Please read and follow our [Code of Con
  ## <a name="question"></a> Got a Question or Problem?
  -Please, do not open issues for the general support questions as we want to keep GitHub issues for bug reports and feature requests. You've got much better chances of getting your question answered on [Stack Overflow](https://stackoverflow.com/questions/tagged/angular) where the questions should be tagged with tag `angular`.
  +Do not open issues for general support questions as we want to keep GitHub issues for bug reports and feature requests. You've got much better chances of getting your question answered on [Stack Overflow](https://stackoverflow.com/questions/tagged/angular) where the questions should be tagged with tag `angular`.
  Stack Overflow is a much better place to ask questions since:
  @@ -25,7 +25,7 @@ Stack Overflow is a much better place to ask questions since:
  - questions and answers stay available for public viewing so your question / answer might help someone else
  - Stack Overflow's voting system assures that the best answers are prominently visible.
  -To save your and our time we will be systematically closing all the issues that are requests for general support and redirecting people to Stack Overflow.
  +To save your and our time, we will systematically close all issues that are requests for general support and redirect people to Stack Overflow.
  If you would like to chat about the question in real-time, you can reach out via [our gitter channel][gitter].
  