kate-editor.org upgrade

[Christoph Cullmann]

Hi,

> => sysadmin moved it now to the proper location:
> 
> https://invent.kde.org/websites/kate-editor-org

I added the code to generate the update site for the latest
syntax highlighting files, too.

How to use that is now documented in the README.md of the
above repository.

If I miss to run that, each contributor with a git account can
do so.

Greetings
Christoph

-- 
Ignorance is bliss...
https://cullmann.io | https://kate-editor.org