Update README.md

WordsofDefiance · web-flow · commit cbffaf49ce1a · 2020-12-07T08:56:28.000-07:00
diff --git a/README.md b/README.md
@@ -24,3 +24,4 @@ To start the front-end server:
 cd client
 npm start
 ```
+Once the front-end and the back-end servers are up, you should be able to access the app at http://localhost:3000.
