docs: general fixes and overall changes (#7258)

* editing halfway

* edited second half

* adjust starter steps

* fix build

* typo fix

www/apps/book/app/storefront-development/nextjs-starter/page.mdx

@@ -6,9 +6,9 @@ export const metadata = {
 
 In this chapter, you’ll learn how to install and use the Next.js Starter storefront.
 
-<Note title="Demo">
+<Note type="soon">
 
-Check out the demo [here](https://next.medusajs.com/).
+The Next.js starter is currently in development to fully support Medusa v2.
 
 </Note>
 
@@ -21,16 +21,17 @@ Check out the demo [here](https://next.medusajs.com/).
 
 </Note>
 
-1. Create a Next.js project using the [Next.js Starter’s repository URL](https://github.com/medusajs/nextjs-starter-medusa):
+1. Clone the `feat/v2` branch of the [Next.js Starter](https://github.com/medusajs/nextjs-starter-medusa):
 
 ```bash
-npx create-next-app -e https://github.com/medusajs/nextjs-starter-medusa my-medusa-storefront
+git clone https://github.com/medusajs/nextjs-starter-medusa -b feat/v2 my-medusa-storefront
 ```
 
-2. Change to the `my-medusa-storefront` directory and rename the template environment variable:
+2. Change to the `my-medusa-storefront` directory, install the dependencies, and rename the template environment variable:
 
-```bash
+```bash npm2yarn
 cd my-medusa-storefront
+npm install
 mv .env.template .env.local
 ```
 

www/apps/book/app/storefront-development/page.mdx

@@ -8,6 +8,6 @@ In the next chapters, you’ll learn about building a storefront for your Medusa
 
 ## Storefronts in Medusa’s Architecture
 
-Storefronts are built separately from the Medusa application. They interact with the Medusa application through the Store API Routes.
+Storefronts are built separately from the Medusa application. They interact with the Medusa application through the Store API routes.
 
-You have full freedom in how you choose to build your storefront. You can start with our Next.js starter storefront or build a storefront from scratch using your preferred framework or tech stack. Both of these approaches are explained in the next chapters.
+You're free to choose how to build your storefront. You can start with our Next.js starter storefront or build a storefront from scratch using your preferred framework or tech stack. Both of these approaches are explained in the next chapters.

www/apps/book/app/storefront-development/tips/page.mdx

@@ -52,13 +52,7 @@ Products, carts, and orders are associated with a sales channel. If you don’t
 
 </Note>
 
-### Create a Publishable API Key
-
-You can create a publishable API key using either the [Medusa Admin dashboard](https://docs.medusajs.com/user-guide/settings/publishable-api-keys) or the [Admin API Routes](https://docs.medusajs.com/api/admin#publishable-api-keys).
-
-### Use the Publishable API Key
-
-Refer to the [Store API Reference](https://docs.medusajs.com/api/store#publishable-api-key) to learn how to use the publishable API key in your requests.
+Publishable API keys are provided by the [API key commerce module](!resources!/commerce-modules/api-key).
 
 ---