This commit makes two significant changes:

1. Remove all Fedora Docs files, scripts, and assets, since this is
   managed in a new repo: https://gitlab.com/fedora/mindshare/docs
2. Update `README.md` to explain the purpose of this repo, fix the link
   to the Committee documentation, use GitLab links instead of Pagure
   links, and minor restructuring for easier reading.

It also adds a `LICENSE.txt` file to make the implicit CC BY-SA 4.0
license per the Fedora Project Contributor Agreement (FPCA) an explicit
license.

Signed-off-by: Justin W. Flory (he/him) <jwf@redhat.com>