Information Flows
-----------------
-| This section describes the information flows among the function
- entities when Escalator is in actions.
-| We should consider a generic procedure / frameworks of upgrading. And
+This section describes the information flows among the function
+entities when Escalator is in actions.
+
+.. <hujie> We should consider a generic procedure / frameworks of upgrading. And
may provide plug-ins interface for specialized tasks
\ No newline at end of file