Re: [tor-project] August 2017 report for the metrics team

Formalized the steps for sanitizing bridge descriptors [2] that are collected and published by CollecTor.

[2] https://metrics.torproject.org/bridge-descriptors.html

Neat, great stuff! Delightfully detailed. :P

One quick thing: when we next change sanitization would you mind adding a 'changes' section with the date of the change and what the modification was? I keep an eye on the tor-spec git changes to know when the dir-spec changes but a webpage like this is harder to track. A list to answer the question of "Last time I checked this was August. Has anything changed?" would be handy.

Cheers! -Damian