Fix broken links and structure

docusaurus/docs/Flutter/02-tutorials/03-video-calling.mdx → docusaurus/docs/Flutter/02-tutorials/01-video-calling.mdx

@@ -1,14 +1,12 @@
 ---
 slug: /video-calling-guide
-title: Video Calling Guide
+title: Video Calling
 ---
 
 ### Introduction
-
 In this tutorial, we will learn how to build a video calling app similar to Google Meet or Zoom using Stream Video.
 
 ### Creating a new project on the dashboard
-
 To start with, log in to the Stream dashboard and create a new project for your new video calling app.
 
 You will need to fill in the relevant fields, like this:
@@ -53,12 +51,12 @@
 
 Stream has several packages that you can use to integrate video into your application.
 
-In this tutorial, we will use the [stream_video_flutter]() package which contains pre-built UI elements for you to use.
+In this tutorial, we will use the [stream_video_flutter](https://pub.dev/packages/stream_video_flutter) package which contains pre-built UI elements for you to use.
 
-You can also use the [stream_video]() package directly if you need direct access to the low-level client.
+You can also use the [stream_video](https://pub.dev/packages/stream_video) package directly if you need direct access to the low-level client.
 
 The [stream_video_flutter_background] package adds background capabilities for the app on Android while the
 [stream_video_push_notification] package helps in adding push notifications and an end-to-end call flow (CallKit).
 
 ### Initialising Stream Video