This commit renames the "Adding new fonts in Fedora" file name. This
is done for two reasons:
1. Ensures the following changes are easier to review commit-by-commit
2. Better optimization in URL for search engines (i.e. this page is
about fonts, so using a single word in the URL optimizes for that
specific keyword)
Signed-off-by: Justin W. Flory (he/him) <git@jwf.io>