Add release checklist

Signed-off-by: Yannick Bungers <git@innay.de>

docs/content/dev/release-checklist.md

@@ -0,0 +1,31 @@
+# Release Checklist
+
+- [ ] Security fixes (make sure all available undisclosed security fixes are merged)
+- [ ] Bump the version
+    - [ ] docs/content/dev/openapi.yml
+        - version number image
+    - [ ] docs/content/setup/manual-setup.md
+        - `git clone` branch
+        - `git checkout` branch
+    - [ ] package.json
+        - `version`
+    - [ ]  public/docs/release-notes.md
+        - version
+        - date
+        - text
+- [ ] Update docker-compose in the docs
+- [ ] Make sure `yarn.lock` is up to date
+- [ ] Make sure translations are up to date
+- [ ] Exclude `.github folder`
+- [ ] Write release notes
+  - [ ] General description
+  - [ ] Things requiring special action beside updating the software
+  - [ ] New features
+  - [ ] Bug fixes
+  - [ ] Enhancements
+  - [ ] Add all contributors
+- [ ] Run the tests described in the release test document (internal)
+- [ ] Upload tar ball to github and add a release tag
+- [ ] Update container images
+- [ ] Update website by running the ["deploy" workflow](https://github.com/hedgedoc/hedgedoc.github.io/actions?query=workflow%3A%22Deploy+to+github+actions+branch%22) in hedgedoc/hedgedoc.github.io
+