This commit changes the information architecture of event-related
documentation in the Mindshare Committee docs site. Content was changed
minimally; most changes were to mention GitLab instead of Pagure or to
use Discourse/Matrix instead of mailing lists/IRC.

Additionally, the pages in this section now use attributes for several
links. In the event that a link changes in the future, it will be easier
to update URLs from a single place instead of several links becoming
outdated.

I chose to separate the events documentation into a new module because
it provides a greater degree of separation from other content published
in the Mindshare Committee documentation. It can exist as a more
independent part of our docs instead of getting grouped together with
Committee procedures, policies, and onboarding guidance for members.

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

Use Camel Case in the navfile

Petr Bokoč

This commit backports a commit made to the previous documentation
repository for the Mindshare Committee. The Committee membership is now
up-to-date on the index page.

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

This commit makes several mostly cosmetic changes to the AsciiDoc source
material for the Mindshare Committee documentation index page:

* Adhere to one-sentence-per-line convention
* Add header anchors to all anchors (easier to change the headers later
  without breaking existing links)
* Update "FCAIC" to "FCA" and link to Council role page where applicable
* Minor styling and cosmetic changes

Additionally, the README was updated to better explain this repository's
purpose and how to build the documentation site in a local environment.

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

This commit is a bulk change to all files from the original state in
Pagure. Notably, this commit brings in updated versions of the build/
preview scripts, removes unnecessary files, and removes the starting
path for the documentation. Since this repository will only be used for
Mindshare docs and no other purpose, the docs will build from the root
directory.

No content was changed or edited, only moved.

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