docs(fix): replace centeredImage with figure shortcode (#91)

centeredImage works local and deploy preview but not prod with the
URL. See #90

content/en/remote-network-agent/overview/index.md

@@ -38,10 +38,10 @@ When you install the RNA configured with Armory credentials into your private ne
 
 Agent Hub routes network traffic from internal, authenticated Armory services to your privately networked resources via a multi-target network relay that pipes data through encrypted gRPC tunnels to the RNA, which forwards the data to its destination.
 
-{{< centeredImage src="./rna-arch.png" alt="CD-as-a-Service Remote Network Agent Architecture Diagram" caption="Remote Network Agent securely integrates your on-prem tools with CD-as-a-Service." >}}
-
 In Armory's secure private network, Agent Hub is an [(RFC 1929)](https://datatracker.ietf.org/doc/html/rfc1929) SOCKS5 compliant proxy [(RFC 1928)](https://www.rfc-editor.org/rfc/rfc1928.html). Agent Hub knows how to execute socks proxy requests through a bidirectional gRPC tunnel that is established by an RNA.
 
+{{< figure src="rna-arch.png" width="80%" height="80%" alt="CD-as-a-Service Remote Network Agent Architecture Diagram" title="Remote Network Agent securely integrates your on-prem tools with CD-as-a-Service." >}}
+
 ## {{% heading "nextSteps" %}}
 
 * You can use the CLI, kubectl commands, or Helm to install a Remote Network Agent in your cluster. See the [Installation guide]({{< ref "remote-network-agent/install" >}}) for details.