add release docs

[jantimon]

first draft of a guide on how to release next-yak

unfortunately as we can't push to master anymore this guide isn't 100% accurate anymore

also the changeset bot seems not to work right now

there is a changeset bot feature which creates a pr to release the packages directly npm

[jantimon]

we could also automate this step:

This action for Changesets creates a pull request with all of the package versions updated and changelogs updated and when there are new changesets on your configured baseBranch, the PR will be updated. When you're ready, you can merge the pull request and you can either publish the packages to npm manually or setup the action to do it for you.

https://github.com/changesets/action

[changeset-bot]

⚠️ No Changeset found

Latest commit: 969ab48

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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