Update README (#311)

kunalkapadia · web-flow · commit 5851fbd4920b · 2017-02-22T21:38:50.000+05:30
diff --git a/README.md b/README.md
@@ -56,6 +56,11 @@ Install dependencies:
 yarn
 ```
 
+Set environment (vars):
+```sh
+cp .env.example .env
+```
+
 Start server:
 ```sh
 # Start server
