docs(bridge-ui-v2): update README.md in bridge-ui-v2 (#14280)

packages/bridge-ui-v2/README.md

@@ -1,28 +1,26 @@
-# create-svelte
+# Bridge UI v2
 
-Everything you need to build a Svelte project, powered by [`create-svelte`](https://github.com/sveltejs/kit/tree/master/packages/create-svelte).
+## Developing
 
-## Creating a project
+Installed dependencies with `pnpm install`
 
-If you're seeing this, you've probably already done this step. Congrats!
+Set up environment variables
 
 ```bash
-# create a new project in the current directory
-npm create svelte@latest
+cp .env.example .env
 
-# create a new project in my-app
-npm create svelte@latest my-app
-```
+# update environment variables in .env
 
-## Developing
+source .env
+```
 
-Once you've created a project and installed dependencies with `npm install` (or `pnpm install` or `yarn`), start a development server:
+start a development server:
 
 ```bash
-npm run dev
+pnpm run dev
 
 # or start the server and open the app in a new browser tab
-npm run dev -- --open
+pnpm run dev -- --open
 ```
 
 ## Building