fix grammar on 'onionize any website' text
while i'm here, also change the part where it says "we show you", because we don't yet do that.
GitLab is used only for code review, issue tracking and project management. Canonical locations for source code are still https://gitweb.torproject.org/ https://git.torproject.org/ and git-rw.torproject.org.
while i'm here, also change the part where it says "we show you", because we don't yet do that.