add examples to the command line options for remsim-bankd and remsim-client

Change-Id: Idfa6352ce90dd36dd27306d6c8a2023935ed822d
diff --git a/contrib/etc_default/osmo-remsim-client-2 b/contrib/etc_default/osmo-remsim-client-2
index 3f66289..c705df0 100644
--- a/contrib/etc_default/osmo-remsim-client-2
+++ b/contrib/etc_default/osmo-remsim-client-2
@@ -4,3 +4,4 @@
 REMSIM_I="0"
 REMSIM_H="2-1.4"
 REMSIM_c="0"
+REMSIM_n="2"