Change vector.im -> riot.im on Community page
Change vector.im -> riot.im on Community page

Vector is Riot now, see:

https://techcrunch.com/2016/09/19/riot-wants-to-be-like-slack-but-with-the-flexibility-of-an-underlying-open-source-platform/

prometheus/docs,prometheus/docs,Cepave/openfalcon.io,Cepave/openfalcon.io,Cepave/openfalcon.io,tcolgate/docs,tcolgate/docs,open-falcon/open-falcon.github.io,open-falcon/open-falcon.github.io,open-falcon/open-falcon.github.io,chosenken/docs,chosenken/docs,ddfreyne/prometheus-docs,du2016/prometheus-docs,ddfreyne/prometheus-docs,chosenken/docs,prometheus/docs,ddfreyne/prometheus-docs,du2016/prometheus-docs,du2016/prometheus-docs,ddfreyne/prometheus-docs,chosenken/docs,tcolgate/docs