Adding documentation to become a WebRTC committer.

No-Try: True
Bug: None
Change-Id: I36ed5fcea29d096a03447954a49383c22865bc15
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/183100
Reviewed-by: Tommi <tommi@webrtc.org>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32027}
diff --git a/docs/faq.md b/docs/faq.md
index 9f31f31..700fd15 100644
--- a/docs/faq.md
+++ b/docs/faq.md
@@ -142,6 +142,16 @@
 Yes, each Contributor must sign and return the
 [Contributor License Agreement][cla-link]
 
+### How can I become a WebRTC committer?
+
+After 10-20 non-trivial patches you can apply for commit rights. If you are
+writing a lot of patches you can also apply for try job access before then.
+To apply, open a bug on https://bugs.chromium.org/p/webrtc/ specifying the
+e-mail you will use to commit code to WebRTC and list all the relevant CLs to
+show your previous contributions (even in case you are only requiring try job
+access since it is still required a certain number of contributions for that
+as well).
+
 [cla-link]: https://developers.google.com/open-source/cla/individual?hl=en