Try to fix the api doc layout problem.

Author: Xavier-xuan

team_project/Documentation/docfx.json

@@ -30,9 +30,7 @@
         "exportApiNamespaceToc": true,
         "globalMetadata": {
             "_appTitle": "SUSTech Racing Car Documentation",
-            "_appFooter": "Generated by DocFX",            
-            "_appLandingPage": "index.html",
-            "_namespaceLayout": "NamespaceLayout.html"
+            "_appFooter": "Generated by DocFX"       
         },
         "content": [
             {
@@ -58,22 +56,7 @@
                 ]
             }
         ],
-        "sitemap": {
-            "baseUrl": "https://normanderwan.github.io/DocFxForUnity",
-            "changefreq": "weekly",
-            "fileOptions": {
-                "api/*": {
-                    "changefreq": "daily"
-                }
-            }
-        },
-        "xref": [
-            "https://normanderwan.github.io/UnityXrefMaps/xrefmap.yml"
-        ],
-        "xrefService": [
-            "https://xref.docs.microsoft.com/query?uid={uid}"
-        ],
         "dest": "../_site",
-        "homepage": "index.html"
+        "homepage": "toc.html"
     }
 }