Do not render props table if there are no props (fix #50).
Do not render props table if there are no props (fix #50).

bluetidepro/react-styleguidist,sapegin/react-styleguidist,sapegin/react-styleguidist,styleguidist/react-styleguidist,styleguidist/react-styleguidist,styleguidist/react-styleguidist