Module Documentation and infos

Problem/Motivation

- There is no README file.
- There is no Documentation page
- Also the project page was not updated from ages.

Steps to reproduce

As described above.

Proposed resolution

- Add README file with valuable information.
- Create Documentation page(s) as other contrib modules have.
- Update the project page with valuable information about the module.
- Add known issues
Ex. Suggestions Limit doesn't work properly for autocomplete results duplicate
https://www.drupal.org/project/views_autocomplete_filters/issues/3166007

Remaining tasks

- All abobe

User interface changes

API changes

None

Data model changes

None