Hereby I introduce a ''Development Status'' page, where the
current phase of the release cycle can be marked and similar
status information is published. This page also includes
the Changelog (from the file NEWS). Since updates must
be checked into Git and then pushed to our website,
such status marks are documented in the history.
Some notes regarding the phases of the Release cycle
were also added to the Release checklist.
+ some additional links resources and documentation tweaks
- comb through the Website, starting at the frontpage
- add a **news** entry to confirm this major upgrade step (C++23)
- improve the wording in various overview pages
- adapt the ''release checklist'' to align it with **git-flow**
- reorganise the image folder(s) on the website
- the animated beating heart is back ;-)
