'set-url'::
-Changes URL remote points to. Sets first URL remote points to matching
+Changes URLs for the remote. Sets first URL for remote <name> that matches
regex <oldurl> (first URL if no <oldurl> is given) to <newurl>. If
-<oldurl> doesn't match any URL, error occurs and nothing is changed.
+<oldurl> doesn't match any URL, an error occurs and nothing is changed.
+
With '--push', push URLs are manipulated instead of fetch URLs.
+
-With '--add', instead of changing some URL, new URL is added.
+With '--add', instead of changing existing URLs, new URL is added.
+
-With '--delete', instead of changing some URL, all URLs matching
-regex <url> are deleted. Trying to delete all non-push URLs is an
-error.
+With '--delete', instead of changing existing URLs, all URLs matching
+regex <url> are deleted for remote <name>. Trying to delete all
+non-push URLs is an error.
++
+Note that the push URL and the fetch URL, even though they can
+be set differently, must still refer to the same place. What you
+pushed to the push URL should be what you would see if you
+immediately fetched from the fetch URL. If you are trying to
+fetch from one place (e.g. your upstream) and push to another (e.g.
+your publishing repository), use two separate remotes.
+
'show'::