updated instructions for installing in devDeps (#313)

intrepion · danez · commit eaa378f384d4 · 2018-12-06T19:05:43.000-08:00
diff --git a/README.md b/README.md
@@ -20,7 +20,7 @@ yarn add react-docgen --dev
 ```
 
 ```
-npm install react-docgen
+npm install --save-dev react-docgen
 ```
 
 
