Backport #26267 by @wxiaoguang 1. Fix the wrong document (add the missing `MODE=`) 2. Add a more friendly log message to tell users to add `MODE=` in their config Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
See https://github.com/go-gitea/gitea/pull/26051 --------- Signed-off-by: jolheiser <john.olheiser@gmail.com> Co-authored-by: JonRB <4564448+eeyrjmr@users.noreply.github.com>