Privacy policy for nitter.net and the nitter project

[TheFrenchGhosty]

Right now nitter.net (and the whole nitter project) don't have any privacy policy, for a privacy focused project this is really needed considering how much people use privacy as a marketing argument (See https://github.com/OkunaOrg/okuna-www/issues/120 for the worst example of a project that literally censor people that talk about it (they locked their issues to contributors only after I posted that, amazing for a "ethical" project)).

[Booteille]

Since more users are using Nitter now, I think it's time to work on the privacy policy.