Add Version Selector to drush.org

[tekNorah]

Existing document https://www.drush.org/latest/commands/all/

What are you attempting to do Get a list of Drush 10 commands

In what way is the existing documentation unclear or incomplete No version switcher option in header or footer

What should the documentation say instead? Version Selector should be available in the header. See: https://squidfunk.github.io/mkdocs-material/setup/setting-up-versioning/

[tekNorah]

Would this change be done here? https://github.com/drush-ops/drush/blob/11.x/mkdocs_base.yml

[tekNorah]

The comment on this issue appears to be related: https://github.com/drush-ops/drush/pull/4623

[weitzman]

Yes, that would be the file. See https://www.drush.org/latest/commands/mk_docs/ for the command that makes an mkdocs.yml out of that.

I think we should do this soon, before we release 12.0