docs: update

Author: chenjiahan

CONTRIBUTING.md

@@ -127,7 +127,8 @@ For VS Code users, you can install the [Biome VS Code extension](https://marketp
 
 Repository maintainers can publish a new version of changed packages to npm.
 
-1. Run `pnpm generate-release-pr` to generate a release pull request.
-2. Run the [release action](https://github.com/web-infra-dev/rsbuild/actions/workflows/release.yml) to publish packages to npm.
-3. Generate the [release notes](https://github.com/web-infra-dev/rsbuild/releases) via GitHub, see [Automatically generated release notes](https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes)
-4. Merge the release pull request to `main`.
+1. Run `pnpm generate-release-pr` to generate a release branch.
+2. Create a pull request, the title should be `release: v1.2.0`.
+3. Run the [release action](https://github.com/web-infra-dev/rsbuild/actions/workflows/release.yml) to publish packages to npm.
+4. Generate the [release notes](https://github.com/web-infra-dev/rsbuild/releases) via GitHub, see [Automatically generated release notes](https://docs.github.com/en/repositories/releasing-projects-on-github/automatically-generated-release-notes)
+5. Merge the release pull request to `main`.