Contact details in footer are outdated

The footer live on degrowth.net still features a mocked email address, plus an improvised mention of Riot.

Now the actual groups, plus the Chat are available, so we can update this

mentioned in issue #20 (closed)

The footer is rendered from a template https://lab.allmende.io/ecobytes/commons/hugo-theme-ecoprey/blob/master/layouts/partials/footer.html which is filled with details https://lab.allmende.io/degrowth/degrowth.net/blob/master/config.toml

mentioned in commit 39084f54

mentioned in merge request !1 (merged)

added 1 deleted label

closed via merge request !1 (merged)

closed via commit 39084f54

closed via commit 6d9887df

mentioned in commit hub.degrowth.net@6d9887df