Authors and Contributions

[dwd]

• Surface (and correct) the source control information.
• Surface the publication URL (although I assume anyone reading this has figured that one out by now).
• Surface the contributor side of things.
• Add bit about XEP authors making PRs if they don't exist - this is "new" rather than documenting existing practice.
• Add bit about PRs getting XEP author approval (existing practice hithertofore undocumented).
• Add bit about Council (etc) adding authors if they drop off (existing practice hithertofore undocumented).
• Add note to clarify that Retraction doesn't mean Deletion (existing practice, documented, but has been misunderstood before).