crowdin_sync: Add support for translations upload

Change-Id: I38bda5886ea2c159970e42c0b7120d3236b134d9
diff --git a/README.mkdn b/README.mkdn
index 9d13bee..bfeb538 100644
--- a/README.mkdn
+++ b/README.mkdn
@@ -29,7 +29,7 @@
 
 Execute:
 
-    ./crowdin_sync.py --username your_gerrit_username --branch cm_version [--no-download|--no-upload]
+    ./crowdin_sync.py --username your_gerrit_username --branch cm_version [--upload-sources] [--upload-translations] [--download]
 
 Bugs
 ----