pidgin/nest

Update the links for the groupme protocol to the active repository

Testing Done:
Ran the devserver and verified everything looked okay.

Reviewed at https://reviews.imfreedom.org/r/2343/
{{ with .Get 3 }}<img style="margin: 0; display: inline;" src="{{ . }}">{{ else }}<a href="{{ .Site.BaseURL }}{{ .Get 1 }}"><img style="margin: 0; display: inline;" src="{{ .Site.BaseURL }}{{ .Get 0 }}" alt="{{ .Get 2 }}"></a>{{ end }}