Update index.md

pages/_docs/index.md

@@ -23,10 +23,11 @@ When completed, you'll be able to run the various commands provided from the com
 
 ### Build Tabler locally
 
-1. From the root `/tabler` directory, run `npm run serve` in the command line.
+1. From the root `/tabler` directory, run `npm run start` in the command line.
 2. Open [http://localhost:4000](http://localhost:4000) in your browser, and voilà.
-3. Any change in `/src` directory will build application and refresh the page.
+3. Any change in `/pages` directory will build application and refresh the page.
 
+**Note**: run `npm run build` for rerforms a one off build application without refresh.
 
 ### Bugs and feature requests