HOWTO: 5,000€ grant earmarked for Gitea federation

Status update: per mention on call, there was a prior PR I needed to accomplish before user pub/priv keys PR could be submitted. I’ve just submitted the PR now: https://github.com/go-gitea/gitea/pull/16834 hopefully I’ve covered all the areas a reviewer may provide feedback on, and that it’ll be a quick merge so I can submit #16717 (Feature request: Create keypair per user for signing federated requests)