docs: add maintainance documentation

README.md

@@ -46,3 +46,19 @@ Feature of [Clash.Meta](https://github.com/MetaCubeX/Clash.Meta)
    ```bash
    ./gradlew app:assembleMeta-AlphaRelease
    ```
+
+### Kernel Contribution
+
+- CMFA uses the kernel from `android-real` branch under `MetaCubeX/Clash.Meta`, which is a merge of the main `Alpha` branch and `android-open`.
+  - If you want to contribute to the kernel, make PRs to `Alpha` branch of the Meta kernel repository.
+  - If you want to contribute Android-specific patches to the kernel, make PRs to  `android-open` branch of the Meta kernel repository.
+
+### Project Maintainance
+
+- When `MetaCubeX/Clash.Meta` kernel is updated to a new version, the `Update Dependencies` actions in this repo will be triggered automatically.
+  - It will pull the new version of the meta kernel, update all the golang dependencies, and create a PR without manual intervention.
+  - If there is any compile error in PR, you need to fix it before merging. Alternatively, you may merge the PR directly.
+- Manually triggering `Build Pre-Release` actions will automatically compile and publish a `PreRelease` version.
+- Manually triggering `Build Release` actions will automatically compile, tag and publish a `Release` version.
+  - There is an option `Auto bump project version` in trigger widget. If this option is checked and triggered, the `versionName` and `versionCode` in `build.gradle.kts` will be bumped first, then do the common build release process.
+  - This option is intended for quickly update and release a new version online, without pulling the repository locally and work around by manual.