Update readme

Author: PeterTYLiu

README.md

@@ -1,5 +1,17 @@
 # MUI Theme Builder
 
+Live app: https://petertyliu.github.io/mui-theme-builder/
+
 Use this app to build/generate a basic MUI theme, which you can customize further by referring to the [MUI theming docs](https://mui.com/material-ui/customization/theming). Compatible with MUI 5 and higher.
 
 Inspired by (but not forked from) [bareynol's MUI theme creator](https://bareynol.github.io/mui-theme-creator)
+
+## Running locally
+
+```bash
+# Install packages
+npm i
+
+# Run app
+npm run dev
+```