Previously they had to be duplicated from the page
frontmatter but that's not necessary and also makes
it possible to have correct OpenGraph title and
descriptions.
This will remove a lot of redundant variable definitions from
Haml translations and centralize everything so it's much easier to
update links when the invariably change. As they have.
# Title
# Tell me everything!
# Co-authors (they will be credited on GitHub as well)
# Co-authored-by: Carolina Powers <carolinapoloni@gmail.com>
# Co-authored-by: Meg Kline-Tuls <meglktuls@gmail.com>
# Co-authored-by: Will <will-soto@pluralsight.com>
# Co-authored-by: thatchej <jaron-thatcher@pluralsight.com>