This removes the execution message and adds a comment to the README on
how to readd them via Autocommands.
Also I implemented a function to handle breaking changes. It can later
be used for https://github.com/okuuva/auto-save.nvim/pull/48
This merges in a feature branch. I would like to collect all potential
breaking changes there until we can release it all together in a version
1.0.0
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Co-authored-by: okuuva <okuuva@users.noreply.github.com>