Archive and tag repositories

I probably should have written it directly here rather than as GitHub issue, so here they go:

The idea is to follow the zopefoundation steps and both tag our repositories, so we can filter them easily and put them som maintenance status to them, but also archive the ones that are not needed/used anymore.

Partially is my OCD playing with me, but organization and cleaning up is never a bad thing either I hope :four_leaf_clover:

Suggestions? Should I go ahead and ask for forgiveness? :boom: