Add documentation for redis & drop-in replacements #2222
Description
As redis is a nice in-memory database and field-tested, there are some competitors out there working on more advanced solutions to solve issues redis is currently having.
Some of them are:
- https://docs.keydb.dev/ ( Also field-tested, faster processing because of its internal architecture (multi-threaded) )
- https://github.com/ideawu/ssdb ( Not tested yet, but is built from scratch )
- https://github.com/cbd/edis
Why should we add more options than redis?
Well, mostly because every workflow differs, so adding the multiple choices for different workflows are a nice to have and improve the overall quality and usability.