[FFmpeg-cvslog] Add CONTRIBUTING.md

[Josh de Kock]

ffmpeg | branch: master | Josh de Kock <josh at itanimul.li> | Sun Sep 18 00:41:46 2016 +0100| [ef42c1de2b430ec90ed9931ba823e154714368bc] | committer: Josh de Kock

Add CONTRIBUTING.md

TimothyGu (https://github.com/FFmpeg/FFmpeg/pull/153#issuecomment-143274708)
suggested doing this a while ago, but it was never done. Adding as pull
requests seem to be still coming through.

Signed-off-by: Josh de Kock <josh at itanimul.li>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ef42c1de2b430ec90ed9931ba823e154714368bc
---

 CONTRIBUTING.md | 4 ++++
 README.md       | 3 +--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 0000000..c2b79e4
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,4 @@
+# Note to Github users
+Patches should be submitted to the [ffmpeg-devel mailing list](https://ffmpeg.org/mailman/listinfo/ffmpeg-devel) using `git format-patch` or `git send-email`. Github pull requests should be avoided because they are not part of our review process and **will be ignored**.
+
+See [https://ffmpeg.org/developer.html#Contributing](https://ffmpeg.org/developer.html#Contributing) for more information.
diff --git a/README.md b/README.md
index 2419191..7d5a7ef 100644
--- a/README.md
+++ b/README.md
@@ -45,5 +45,4 @@ GPL. Please refer to the LICENSE file for detailed information.
 
 Patches should be submitted to the ffmpeg-devel mailing list using
 `git format-patch` or `git send-email`. Github pull requests should be
-avoided because they are not part of our review process. Few developers
-follow pull requests so they will likely be ignored.
+avoided because they are not part of our review process and will be ignored.