[Twisted-Python] Review tag for closed tickets

[Adi Roiban]

Jean Paul commented that for merged tickets I should remove the review tag.

I am lost between wiki pages and sphinx documentation.

Where is the place where these these steps are described and maybe I
am also not aware of other steps required after a branch is merged?

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Since the ticket is automatically closed, maybe the bot can also
remove the review ticket.

Thanks!

-- 
Adi Roiban