message: Fix link in documentation. (take 2)
  TBR=peah@webrtc.org
  No-Try: True
  Cr-Commit-Position: refs/heads/master@{#31082}
diff: @@ -11,7 +11,7 @@ amongst others.
  ### Development
  -See [here](docs/native-code.md) for instructions on how to get started
  +See [here][native-dev] for instructions on how to get started
  developing with the native code.
  [Authoritative list](native-api.md) of directories that contain the
  @@ -26,3 +26,5 @@ native API header files.
  * Continuous build: http://build.chromium.org/p/client.webrtc
  * [Coding style guide](style-guide.md)
  * [Code of conduct](CODE_OF_CONDUCT.md)
  +
  +[native-dev]: https://webrtc.googlesource.com/src/+/refs/heads/master/docs/native-code/index.md
  