Add cms kit demo link to nav menu

docs/en/docs-nav.json

@@ -1882,13 +1882,17 @@
           "text": "Overview",
           "path": "samples"
         },
+        {
+          "text": "EventHub",
+          "path": "https://github.com/abpframework/eventhub"
+        },
         {
           "text": "eShopOnAbp",
           "path": "https://github.com/abpframework/eShopOnAbp"
         },
         {
-          "text": "EventHub",
+          "text": "CMS Kit Demo",
-          "path": "https://github.com/abpframework/eventhub"
+          "path": "https://github.com/abpframework/cms-kit-demo"
         },
         {
           "text": "Easy CRM",