Added a warning about NO_SCROLL_TO_AI_LEADER not working in networked MP.

data/core/macros/utils.cfg

@@ -286,6 +286,10 @@
 # beginning of its turn. Useful if that side doesn't really do anything and the
 # scrolling distance would be long enough to be annoying every turn (for example
 # on a big map). Does not work on human-controlled sides.
+#
+# Warning: in networked MP this will cause the game to think the leader of this
+# side has been defeated when changing turns and thus might lead to
+# victory/defeat being declared prematurely.
     [event]
         name=side turn
         first_time_only=no