Docs idea - additional links to follow on collection pages

[GregSutcliffe]

(This idea really belongs to @gundalow - I'm just logging it while I think :P)

So HomeAssistant does a fairly nice thing - on any "integration" page (eg https://www.home-assistant.io/integrations/esphome/) you'll find further links to GitHub in the vein of "Edit this page", "View feedback on this page" etc.

It could be nice to do something similar for collection pages - I can especially see this being useful where a collection has a defined chatroom (eg AWS), so you could link to both GitHub and Matrix/Irc.

This probably requires some additional metadata somewhere as to what rooms exist and for what purposes, and probably what to default to if a specific room doesn't exist, etc. So there's definitely some evaluation needed on this, but I don't want to lose track of an idea :)