Update README with project maintenance status

[DougInAMug]

Update README.md to reflect the changes to the project status, and link the matrix Room

• closes Community chat? #292

[shinenelson]

3 suggestions :

1. We can add a matrix badge to the set of other badges on the readme which would make the link to the room in a more prominent place.
2. Rather than adding numbered links to the end of a line, can we probably link the words become deprecated ( individually )? Or alternatively, make them footnotes ^{1 2} ( which ironically is [not supported] by GitHub-flavored Markdown ( GFM ) which renders markdown in places like this comment; but I think it works in rendering readmes because it uses a different markdown renderer which [does support footnotes] ).
3. We already have a badge to the jsDelivr metric. Does it make the CDN hits sentence kind of redundant? 🤔

Footnotes

1. https://www.markdownguide.org/extended-syntax#footnotes ↩

2. https://kramdown.gettalong.org/syntax.html#footnotes
   [not supported]: https://github.com/github/markup/issues/498
   [does support footnotes]: https://github.com/github/cmark-gfm/pull/64 ↩

[DougInAMug]

I like all those suggestions @shinenelson - I would wait for the badge decision (pending on history decision) before merging :)

[shinenelson]

Would it make sense to use a heading like Project Status or Project Maintenance Status Update or something along those lines? Timestamps can quickly get outdated.

Also, it would nice to link to #235 and #292 to indicate where we started.

[DougInAMug]

Thanks for suggestions again @shinenelson. I mentioned the issues you linked, and rewrote the introduction to avoid timestamp, and included matrix badge :)

[shinenelson]

Nice revamp of the introductory section. I suggested a few more changes that could make the changes even better.