Current docs demonstrate how to configure a database container but don't
explicitly specify that you should add additional environment variables
to the Gitea container to make it use the database. This just
demonstrates the changes required.
Signed-off-by: Dane Elwell <dane.elwell@ukfast.co.uk>
* Add disable registration as an environment variable
for docker
* Add REQUIRE_SIGNIN_VIEW as env var to docker
* Add variables to template
* Update docker docs