doc: fixed default port error in README.md (PanJiaChen#373)

blony · PanJiaChen · commit fa7310902a4c · 2019-05-21T12:17:08.000+08:00
diff --git a/README.md b/README.md
@@ -26,7 +26,7 @@ npm install
 npm run dev
 ```
 
-This will automatically open http://localhost:9527
+This will automatically open http://localhost:9528
 
 ## Build
 
