[tor-wiki-changes] doc/MetricsTimeline edited

[Tor Bug Tracker & Wiki: dcf]

Consolidate geoip and geoip6 changes when they happened in the same commit. 

([diff](https://trac.torproject.org/projects/tor/wiki/doc/MetricsTimeline?action=diff&version=213))

URL: https://trac.torproject.org/projects/tor/wiki/doc/MetricsTimeline?version=213