Improve installation instructions and CLI usage.
Improve installation instructions and CLI usage.

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