docs: update README.md with development instructions

README.md

@@ -13,12 +13,17 @@ cp .env.sample .env
 
 ### Development
 
-run a mongo container
+Run a mongo container
 ```
 docker run -d -p 27017:27017 mongo
 ```
 
-start development mode
+Install dependencies
+```
+npm install
+```
+
+Start development mode
 ```
 npm run dev
 ```
@@ -35,12 +40,20 @@ React (by vite)
 
 ### Development
 
-start development mode
+Install dependencies
+```
+npm install
+```
+
+Start development mode
 ```
 cd frontend
 npm run dev
 ```
 
+Visit
+http://localhost:5173
+
 ### Run cypress test
 
 ```