How to maintain the GROK toolkit versions page

The GROK toolkit version configuration page and the linked version and requirements files are built from a special branch of the groktoolkit GitHub repository.

  $ git clone -b gh-pages git@github.com:zopefoundation/groktoolkit
  $ cd groktoolkit
  $ ./build_indexes.sh
  $ git add README.md releases/
  $ git commit -m "Add new GROK toolkit release(s)."
  $ git push origin gh-pages

The end result is available at https://zopefoundation.github.io/groktoolkit/.