Update Amazon DCV module with image and icon changes

- Include visualization in README with new image
- Change icon path in Terraform configuration for DCV

amazon-dcv-windows/README.md

@@ -12,6 +12,8 @@ tags: [windows, dcv, web, desktop]
 
 Amazon DCV is high performance remote display protocol that provides a secure way to deliver remote desktop and application streaming from any cloud or data center to any device, over varying network conditions.
 
+![Amazon DCV on a Windows workspace](../.images/amazon-dcv-windows.png)
+
 Enable DCV Server and Web Client on Windows workspaces.
 
 ```tf

amazon-dcv-windows/main.tf

@@ -43,7 +43,7 @@ resource "coder_app" "web-dcv" {
   slug         = var.slug
   display_name = "Web DCV"
   url          = "https://localhost:${var.port}${local.web_url_path}?username=${local.admin_username}&password=${var.admin_password}"
-  icon         = "/icon/desktop.svg"
+  icon         = "/icon/dcv.svg"
   subdomain    = var.subdomain
 }