The previous variables are used by the compiler and aren't too useful
for non-developers. The newly listed variables are more likely to be of
interest.
Apologies for this drive-by PR, I probably missed instructions from the
contributors guide. The patch can be regarded as a simple way to explain
the problem and solution. Feel free to close and possibly create a new
PR that does adhere to the contributors guide.
This PR cleans up the docs in a way to make them simpler to ingest by
our [docs repo](https://gitea.com/gitea/gitea-docusaurus).
1. It includes all of the sed invocations our ingestion did, removing
the need to do it at build time.
2. It replaces the shortcode variable replacement method with
`@variable@` style, simply for easier sed invocations when required.
3. It removes unused files and moves the docs up a level as cleanup.
---------
Signed-off-by: jolheiser <john.olheiser@gmail.com>
