Improve submodule subscription documentation
Current documentation does not cover some limitations in the
implementation. This might cause a Gerrit user to spend valuable time
trying to troubleshoot why a submodule subscription is not working as
expected. Examples of this are:
* Not possible to use the feature with SSH hostname different from
canonical web URL hostname
* Relative submodules must contain the full Gerrit project name
Change-Id: I5acf608b366f3f64047730c2b691b1e6bf62a2ea
1 file changed
