[boost] GITHUB - How does one add another maintainer to a repo

Subject: [boost] GITHUB - How does one add another maintainer to a repo
From: Robert Ramey (ramey_at_[hidden])
Date: 2017-10-08 20:01:30

I'm maintainer of the boost serialization library.

Is there a simple way to give update permission to other persons?  What 
is it.  Ideally I'd like to do it at the branch level.

I've looked through the GitHub help, and as usual, I'm mistified.

Robert Ramey