Locked @auth0/nextjs-auth0@3 for non-interactive nextjs quickstart (#10513)

* Lock @auth0/nextjs-auth0 to 3 until we can rework non-interactive nextjs quickstart

* Fixed a broken url

Author: GilbertLS

articles/quickstart/webapp/nextjs/01-login.md

@@ -23,7 +23,7 @@ useCase: quickstart
 Run the following command within your project directory to install the Auth0 Next.js SDK:
 
 ```sh
-npm install @auth0/nextjs-auth0
+npm install @auth0/nextjs-auth0@3
 ```
 
 The SDK exposes methods and variables that help you integrate Auth0 with your Next.js application using <a href="https://nextjs.org/docs/app/building-your-application/routing/route-handlers" target="_blank" rel="noreferrer">Route Handlers</a> on the backend and <a href="https://reactjs.org/docs/context.html" target="_blank" rel="noreferrer">React Context</a> with <a href="https://reactjs.org/docs/hooks-overview.html" target="_blank" rel="noreferrer">React Hooks</a> on the frontend.
@@ -50,7 +50,7 @@ The SDK will read these values from the Node.js process environment and automati
 
 ### Add the dynamic API route handler
 
-Create a file at `app/api/auth/<a href="https://nextjs.org/docs/app/building-your-application/routing/route-handlers#dynamic-route-segments" target="_blank" rel="noreferrer">auth0/route.js`. This is your Route Handler file with a Dynamic Route Segment</a>.
+Create a file at `app/api/auth/[auth0]/route.js`. This is your Route Handler file with a <a href="https://nextjs.org/docs/app/building-your-application/routing/route-handlers#dynamic-route-segments" target="_blank" rel="noreferrer">Dynamic Route Segment</a>.
 
 Then, import the `handleAuth` method from the SDK and call it from the `GET` export.