README

README.md

@@ -41,9 +41,19 @@ Start Up on Local
 Crowi is designed setting up to Heroku or some PaaS, but you can start up Crowi with ENV parameter on your local.
 
 ```
-$ MONGOLAB_URI=mongodb://username:password@localhost/crowi node app.js
+$ PASSWORD_SEED=somesecretstring MONGOHQ_URL=mongodb://username:password@localhost/crowi node app.js
 ```
 
+### Environment
+
+
+* `PORT`: Server port. default: `3000`.
+* `NODE_ENV`: `production` OR `development`.
+* `MONGO_URI`: URI to connect MongoDB. This parameter is also by `MONGOHQ_URL` OR `MONGOLAB_URI`.
+* `PASSWORD_SEED`: A password seed is used by password hash generator.
+* `SECRET_TOKEN`: A secret key for verifying the integrity of signed cookies.
+
+
 License
 ---------