Release checklist: minor tweaks

Author: jrfnl

.github/RELEASE_CHECKLIST.md

@@ -10,13 +10,14 @@ Release checklist
     - [ ] Move anything that is still open in the current milestone to the new `Next release` milestone.
 - [ ] Verify that any PR merged since the last release has a milestone attached to it.
 - [ ] Create a changelog based on everything in the milestone, pull the changelog changes & merge the PR.
-  Verify that a release link at the bottom of the `CHANGELOG.md` file has been added.
+    Verify that a release link at the bottom of the `CHANGELOG.md` file has been added.
 - [ ] Double-check that nothing was merged into the `main` branch.
     - If there are unreleased commits in `main`, merge `main` into `develop` or cherrypick the commits from main into the `develop` branch.
 
 ## Release
 
 - [ ] Open a PR to merge the `develop` branch to `main`.
+    - Pro-tip: use this release checklist as the PR description to document that this release checklist has been followed.
 - [ ] Merge that PR once all CI checks have passed.
 - [ ] Create a release on GitHub, also creating a new tag (targeting `main`) in the process, and copy & paste the changelog to it.
     - Add/edit the relevant links to the bottom of the changelog to make sure all texts between `[]` in changelog entries become links.
@@ -27,8 +28,8 @@ Release checklist
 
 ## Announce
 
-- [ ] Add a message to the `#yoastcs` Slack channel on the [Yoast Slack](https://yoast.slack.com/) to announce the new release:
-```
-We just released YoastCS x.y.z
-Changelog: https://github.com/Yoast/yoastcs/releases/tag/x.y.z
-```
+- [ ] Post a message in the `#yoastcs` Slack channel on the [Yoast Slack](https://yoast.slack.com/) to announce the new release:
+    ```
+    We just released YoastCS x.y.z
+    Changelog: https://github.com/Yoast/yoastcs/releases/tag/x.y.z
+    ```