docs: add releases.md

docs/contributing/releases.md

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+## AFFiNE Release Process
+
+## Who can make a release?
+
+The AFFiNE core team gives release authorization. And also have the following requirements.
+
+- Have commit access to the AFFiNE repository.
+- Have access to GitHub Actions.
+
+## How to make a release?
+
+Before releasing, ensure you have the latest version of the `master` branch.
+
+And Read the semver specification to understand how to version your release. https://semver.org
+
+### 1. Update the version in `package.json.`
+
+```shell
+yarn workspaces foreach exec yarn version 0.5.4-canary.5
+```
+
+### 2. Commit changes and push to `master.`
+
+```shel
+git add .
+# vx.y.z-canary.n
+git commit -m "v0.5.4-canary.5"
+git push origin master
+```
+
+### 3. Create a release action
+
+Create a release action in the [AFFiNE repository](https://github.com/toeverything/AFFiNE/actions/workflows/release-desktop-app.yml).
+
+![img.png](assets/release-action.png)
+
+Select the correct branch and fill out the form, then click `Run workflow.`
+
+### 4. Publish the release
+
+After the release action is completed, you can see the draft release on the [release page](https://github.com/toeverything/AFFiNE/releases).
+
+You can edit the release note and publish it.
+
+Remember that the release tag and title should be the same as the version in `package.json.`
+
+And target the release to that commit you just pushed.