I think this should be of the same length as the title above it

Same as above

When is now? Might be better to do something like: Before release 2.12 pagure had a very simple user model.... or something like this

It might be nice to try being gender neutral in the doc

The current from when?

The same as when?

Same as above, the "procedure remains same" it's the same as what/when? :)

And vice-versa?

almost?

Which change?

till

It -> the user/group

new user -> new user/group

Now -> With Project ACL feature

you will be required to specify the access level of the user/group. -> you will have to select the user or group (depending on whether you clicked Add User or Add Group) and the access you want the user/group to have.

the user -> the user/group

Rebased and added a small commit to make it actually show up in the doc :)

I'm going to merge as is and we can always re-visit/improve afterward :)