Replace README.txt with README.md

The MR #27 can be closed as all the changes were happening in the MR #26. I added a FAQ section based on the 🐛 Autologout disabled after 1.4 Upgrade Closed: works as designed , ready for review.

Added additional Q and A for ✨ Option to disable destination Needs review .

I have reviewed MR!26. It is now as per drupal recommendation.
So moving it to RTBC

Because js-cookie was deprecated in Drupal 10 and will be removed in Drupal 11 → this module now depends on JS Cookie module → . Add the requirements to the README.md

Rebased so tests can pass on the MR26

Removed the Q&A that was added (by me) for the option to disable destination, as some other configuration changes will be added in the future and I think the first Q&A covers it with the configuration export (as all the new configuration features will be added to the new release), but did remove the to 1.4 in the Q as not sure what the new version will be, but basically applies for upgrading from 1.3 or 1.4 version. Maybe wording needs to be different for the Q (How to upgrade from version 1.3 to 1.4 or later?)? Not sure, so leaving it to needs review.

Thanks @DeaOm. Perhaps @gowthamrajkrishnasamy or someone with the right permissions can hide or delete the irrelevant branch 3315952-replace-readme.txt_to_readme.md?