message: Fix doc path
  No-Try: True
  Cr-Commit-Position: refs/heads/main@{#39233}
diff: * How to contribute
  * Code
  * [Style guide](/g3doc/style-guide.md)
  - * [`.h` and `.cc` files come in pairs](g3doc/style-guide/h-cc-pairs.md)
  + * [`.h` and `.cc` files come in pairs](/g3doc/style-guide/h-cc-pairs.md)
  * [How to write code in the `api/` directory](/api/README.md)
  * [Using Abseil in WebRTC](/g3doc/abseil-in-webrtc.md)
  * [Code of conduct](/CODE_OF_CONDUCT.md)
  