About section and registry as MCP server

assets/ar-docs/arctl.md

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+1. Install the `arctl` binary on your local machine to manage agentregistry resources.
+   ```sh
+   curl -fsSL https://raw.githubusercontent.com/agentregistry-dev/agentregistry/main/scripts/get-arctl | bash
+
+   export PATH="/usr/local/bin:$PATH"
+   ```
+
+2. Verify that the CLI is installed correctly.
+   ```sh
+   arctl version
+   ```
+
+> [!TIP]
+> By default, `arctl` connects to `http://localhost:12121`. If your agentregistry instance is exposed at a different address, set the `ARCTL_API_BASE_URL` environment variable or pass `--registry-url` on each command. For example: `export ARCTL_API_BASE_URL=http://<your-agentregistry-host>:12121`.

assets/ar-docs/kubernetes.md

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+The agentregistry Helm chart includes a bundled PostgreSQL instance for development and evaluation. For production, [bring your own PostgreSQL instance]({{< link path="/operations/database/" >}}) instead.
+
+1. Install agentregistry with the bundled PostgreSQL instance.
+   ```sh
+   helm upgrade -i agentregistry oci://ghcr.io/agentregistry-dev/agentregistry/charts/agentregistry \
+       --namespace agentregistry \
+       --create-namespace
+   ```
+
+   > [!NOTE]
+   > The bundled PostgreSQL instance is for development and evaluation only. Data is lost if the PostgreSQL pod is restarted or rescheduled. For production, [use an external PostgreSQL instance]({{< link path="/operations/database/" >}}) instead.
+
+2. Verify that the agentregistry and PostgreSQL pods are up and running.
+   ```sh
+   kubectl get pods -n agentregistry
+   ```
+
+   Example output:
+   ```console
+   NAME                                       READY   STATUS    RESTARTS   AGE
+   agentregistry-c46b8bd98-hvnzf              1/1     Running   0          45s
+   agentregistry-postgresql-9858cbcbf-tk7p9   1/1     Running   0          45s
+   ```
+
+3. Port-forward the agentregistry service to access the UI and API from your local machine.
+   ```sh
+   kubectl port-forward -n agentregistry svc/agentregistry 12121:12121
+   ```
+
+4. Optional: To connect AI development tools to the registry MCP server, port-forward the MCP port in a separate terminal. For more information, see [Connect AI clients to the registry MCP server]({{< link path="/setup/mcp-client/" >}}). 
+   ```sh
+   kubectl port-forward -n agentregistry svc/agentregistry 31313:31313
+   ```
+
+5. [Open the agentregistry UI](http://localhost:12121/) in your browser.
+
+   {{< reuse-image src="img/ar-local.svg" srcDark="img/ar-local-dark.svg" >}}