update for a post-Pages world

[afeld]

• Use master instead of 18f-pages
• Update references to 18f-pages and Pages in this repo
• Include new publishing step of adding the site to Federalist
• Consolidate the instructions living in a few places
  • https://pages.18f.gov/guides-template/post-your-guide/
  • https://github.com/18F/guides-template/#readme
  • https://github.com/18f/pages#publishing-to-pages18fgov

[jmhooper]

@afeld: I'm looking at the work for that last checkmark for the 18f/pages repo. Is that code running somewhere, or can the repository be archived?

[afeld]

If your site wasn't migrated and you want it to be, or if you want to add a new site to pages / guides, it's really easy! Any site published on Federalist from a repository in the 18F GitHub organization will automagically appear at both https://guides.18f.gov/<repository_name>/ and https://pages.18f.gov/<repository_name>/. Just remember to follow these pointers:

• Make sure you use a lower-case f when you specify "18f" as the "Repository Owner's Github Username" in Federalist.
• If you're publishing a site on Federalist from the 18F GitHub repository that you don't want to appear under pages.18f.gov, for example a site for a client, make sure you specify "18F" with an upper-case F in the "Repository Owner's Github Username" in Federalist. If you get this wrong, just delete the site from Federalist and re-add it.
• For Jekyll sites, once you've added the site to Federalist, go to settings and in the "Custom Configuration" box enter baseurl: /<repository_name> and hit "Save"

https://gsa-tts.slack.com/files/jezhumble/F3REB94F5/Pages_and_Guides_migrated_to_Federalist