* README.org: Remove symlink as gitlab does not understand it.
* README: Rename to README.org. Adjust for the move.
* scheme/site/utils.scm (%emacs-guix-source-url): Likewise.
* scheme/site/screenshots.scm (screenshots-page): Likewise.
* scheme/site/main.scm (main-page): Likewise.
* index.html: Regenerated.
* screenshots.html: Regenerated.