Merge pull request #21 from rain64x/readme-update

Update README.md

README.md

@@ -48,6 +48,12 @@ Requires `node 16.18`
 npm install
 ```
 
+### Create app config
+Create an app.config.js which can be edited for custom settings.
+```
+cp src/config/app.config.example.js src/config/app.config.js
+```
+
 ### Compiles and hot-reloads for development
 ```
 npm run serve