It's OK - Github converts it to HTML. However, GCHQ could politely ask the NSA to force Github to give them the usernames and IP addresses that viewed the repo. Maybe use Tor?
It's much easier to go to HN and grab the usernames and IPs of people you can see taking a rebellious position in discussions about these organisations.
Also, why would you assume that showing any interest whatsoever in Tor isn't going to land you on many more watchlists than reading a public PDF in GitHub?
Or you could assume that they have that information already. Which I deem highly likely - private repos are a must-target for any intelligence service out there.
Assuming anyone is inept is inept, since even the inept get lucky.
Well, they know who I am anyway. Hi again!
(Edit: If you click on it from the repo file list at the top it converts it; don't do what I did and click on the link to download at the bottom of the readme)