Update README

README.md

@@ -8,6 +8,9 @@ Indy UI
 ## Prerequisite for debugging in local
 1. docker 20+
 2. docker-compose 1.20+
+3. (Optional) Node 18+
+4. (Optional) NPM 9+
+5. (Optional) Visual Studio Code
 
 ## Configure 
 
@@ -28,3 +31,12 @@ $ mvn clean compile
 ```
 $ mvn quarkus:dev
 ```
+
+## Start to develop with node and npm
+
+All frontend code is hosted in [src/main/webui](src/main/webui), so you can go into this folder and then use all npm command you are familiar. BTW, there are pre-defined npm script as following:
+* `npm run build`: build the whole frontend application
+* `npm run build-dev`: build the whole frontend application in development mode
+* `npm run test`: run unit test
+* `npm run server`: build the whole frontend application and start the local mock server with the built bundle. This is used to do local development with a mock REST server for all indy backend services. You can add any mock REST APIs for the frontend code consuming to do debug without to connect to real Indy backend services.
+* `npm run lint`: do lint for all frontend code