Where to enter an invite to exit read-only?

Question

Habr

Hello!
A comrade sent an invite to the mail so that I switched to the white side of the force from read-only.
He sent it to the same mail to which the account is registered.
I just can’t find where to attach it to “unblock” the account ...
Either the skis don’t go ...
I apologize if I ask an obvious question, but I have been trying to find an answer to it for the second day.
Invite - picture!

Answer 1

If you ask such a question, you may hold back a little invite, otherwise you will suddenly waste it.

Answer 2

tyts