Add markitdown mcp server. (github#174)

Author: cmrigney

servers/markitdown/server.yaml

@@ -0,0 +1,39 @@
+name: markitdown
+image: mcp/markitdown
+type: server
+meta:
+  category: productivity
+  tags:
+    - productivity
+    - markdown
+    - conversion
+    - pdf
+    - docx
+    - pptx
+    - xlsx
+    - html
+    - audio
+    - youtube
+about:
+  title: Markitdown
+  description: A lightweight MCP server for calling MarkItDown.
+  icon: https://avatars.githubusercontent.com/u/6154722?v=4
+source:
+  project: https://github.com/microsoft/markitdown
+  directory: packages/markitdown-mcp
+run:
+  volumes:
+    - '{{markitdown.paths|volume|into}}'
+config:
+  description: The MCP server is allowed to access these paths
+  parameters:
+    type: object
+    properties:
+      paths:
+        type: array
+        items:
+          type: string
+        default:
+          - /Users/local-test
+    required:
+      - paths