adding getting started video to relevant doc pages (#206)

src/pages/how-to/add-machines-to-your-network.mdx

@@ -8,6 +8,17 @@ NetBird peer is a machine that runs the [NetBird agent](/about-netbird/how-netbi
 and is connected to the network. NetBird peer can be a virtual machine running in the cloud like AWS or Google Cloud,
 an Android or iOS device, a personal laptop, a single-board computer like Raspberry Pi, a docker container, or even a router.
 
+## Related Video Content
+
+Our "Getting started with Netbird" video covers various ways to add machines to your network:
+- Adding a MacBook via SSO at 1:35
+- Adding a Docker container with a setup key at 2:35
+- Adding an EC2 node at 6:42
+
+You can watch the relevant sections of the video here:
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/JRCZy4rLi-c" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+
 ## Use NetBird web UI to add new peers
 
 To add a new peer to your network follow these steps:

src/pages/how-to/approve-peers.mdx

@@ -10,6 +10,11 @@ Administrators then can assess whether the peer is eligible to join the network.
 <Note>
     This feature is only available in the [NetBird cloud](https://app.netbird.io/) version.
 </Note>
+## Related Video Content
+
+For details on the peer approval feature, part of our "Getting started with Netbird" video covers this topic. You can watch it here:
+
+<iframe width="560" height="315" src="https://www.youtube.com/embed/JRCZy4rLi-c?start=335" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
 ## Enable peer approval
 To enable peer approval, navigate to [Settings &raquo; Authentication](https://app.netbird.io/settings) and enable 'Peer approval'.

src/pages/how-to/register-machines-using-setup-keys.mdx

@@ -4,6 +4,10 @@
 Setup key is a pre-authentication key that allows to register new machines in your network.
 It simply associates a machine with an account on a first run.
 
+## Related Video Content
+For a comprehensive guide, part of our "Getting started with Netbird" video specifically covers setup keys. You can watch it here:
+<iframe width="560" height="315" src="https://www.youtube.com/embed/JRCZy4rLi-c?start=175" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
+
 The setup key can be provided as a parameter to the ```netbird up``` command.
 This makes it possible to run automated deployments with infrastructure-as-code software like Ansible, Cloudformation or Terraform.