docs: more release docs

docs/abra/hack.md

@@ -359,6 +359,8 @@ For developers, while using this `-beta` format, the `y` part is the "major" ver
 - Push the new tag (e.g. `git push && git push --tags`)
 - Wait until the build finishes on [build.coopcloud.tech](https://build.coopcloud.tech/toolshed/abra)
 - Deploy the new installer script (e.g. `cd ./scripts/installer && make`)
+- Clean up the changelog on the releases page so it includes most relevant changes
+- Make sure there is a migration guide written in the docs (if necessary)
 - Check the release worked, (e.g. `abra upgrade; abra -v`)
 - Share the announcement:
 
@@ -379,6 +381,8 @@ https://docs.coopcloud.tech/abra/upgrade/#XXx-beta-0XXx-beta
 A huge thanks to everyone who helped get this release done ❤️‍🔥
 
 Happy Hacking 🫂
+
+-- $handle
 ```
 
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