adding mcp server

Author: lucadruda

servers/dockerhub/server.yaml

@@ -0,0 +1,29 @@
+name: dockerhub
+image: registrymcp/dockerhub-mcp
+type: server
+meta:
+  category: devops
+  tags:
+    - docker
+    - dockerhub
+about:
+  title: Docker Hub
+  description: Docker Hub official MCP server
+  icon: https://avatars.githubusercontent.com/u/5429470?s=200&v=4
+source:
+  project: https://github.com/docker/hub-mcp
+run:
+  command:
+    - --transport=stdio
+    - --username={{dockerhub.username}}
+config:
+  description: Configure connection to Docker Hub
+  secrets:
+    - name: pat_token
+      env: HUB_PAT_TOKEN
+      example: your_hub_pat_token
+  parameters:
+    type: object
+    properties:
+      username:
+        type: string