Merge pull request #3368 from milvus-io/update-docs

update docs

Author: AnthonyTsu1984

site/en/menuStructure/en.json

@@ -1873,38 +1873,6 @@
           }
         ]
       },
-      {
-        "label": "Milvus CDC",
-        "id": "milvus_cdc",
-        "order": 3,
-        "isMenu": true,
-        "children": [
-          {
-            "label": "Overview",
-            "id": "milvus-cdc-overview.md",
-            "order": 0,
-            "children": []
-          },
-          {
-            "label": "Deploy CDC Server",
-            "id": "deploy-cdc-server.md",
-            "order": 1,
-            "children": []
-          },
-          {
-            "label": "Manage CDC Tasks",
-            "id": "manage-cdc-tasks.md",
-            "order": 2,
-            "children": []
-          },
-          {
-            "label": "Monitoring",
-            "id": "cdc-monitoring.md",
-            "order": 3,
-            "children": []
-          }
-        ]
-      },
       {
         "label": "Milvus CLI",
         "id": "cli",