docs: add docker swarm architecture diagram

apps/docs/content/docs/core/cluster.mdx

@@ -9,6 +9,8 @@ When you deploy applications in dokploy, all of them run on the same node. If yo
 
 The idea of using clusters is to allow each server to host a different application and, using Traefik along with the load balancer, redirect the traffic from the dokploy server to the servers you choose.
 
+<ImageZoom src="/assets/docker-swarm.png" alt="Docker Swarm Diagram" width={1000} height={600} className="rounded-lg"/>
+
 ## Server Scaling Methods
 
 There are two primary ways to scale your server:
@@ -77,11 +79,11 @@ Workers have a single purpose, which is to run the containers, acting under the
 
 You can click the 'Add Node' button, which will display the instructions you need to follow to add your servers as nodes and join them to the dokploy manager node.
 
-<ImageZoom src="/assets/add-node.png" width={800} height={630} className="rounded-lg"/>
+<ImageZoom src="/assets/add-node.png" alt="Add Node" width={800} height={630} className="rounded-lg"/>
 
 Once you follow the instructions, the workers or managers will appear in the table.
 
-<ImageZoom src="/assets/nodes.png" width={800} height={630} className="rounded-lg"/>
+<ImageZoom src="/assets/nodes.png" alt="View Nodes" width={800} height={630} className="rounded-lg"/>
 
 <Callout type="info">
   **Storage Cleanup Note**: Dokploy does not perform automatic cleanup of storage for workers or other associated nodes that are not the Dokploy server. For automatic cleanup, you can add your node as a remote server and configure cleanups, or create a schedule that performs that cleanup. Additionally, you don't need to perform setup when you only add the node as a remote server. For more information, see the [Remote Servers documentation](/docs/core/remote-servers).