Activity pub integration

[tripledoublev]

I did the following steps as seen in these instructions

• Installed the plugin by adding it to our Gemfile
• Generated a private key and added it to GH secrets
• Added the new key flag to jekyll build in the Makefile
• Added relevant links and meta properties to the site's head as seen on this document

Once this is published and propagated, I will run the jekyll notify command.

bundle exec jekyll notify --key ${{ secrets.DP_AP_KEY }}

Should the above command be added to the Makefile?

Anything else that I missed?

[tripledoublev]

Adding that I will need to create additional keys for production (vs staging) and will need to separate these actions so that they each use their associated secrets

[RangerMauve]

LGTM, defs should have separate keys for staging and prod