generate link for namespaces correctly

Author: Feiyang1

repo-scripts/api-documenter/src/documenters/MarkdownDocumenterHelpers.ts

@@ -96,9 +96,18 @@ export function getFilenameForApiItem(apiItem: ApiItem): string {
           multipleEntryPoints = true;
         }
         break;
+      case ApiItemKind.Namespace:
+        baseName += '.' + qualifiedName;
+        break;
+      // append the file name with the first letter of the ApiItemKind to avoid name collision.
+      // Sometimes we could have a class/interface and an entry point that have the same name.
+      // This happened in the admin SDK where the App interface and the app namespace write to the same file.
       case ApiItemKind.Class:
+        baseName += '.' + qualifiedName + '_c';
+        break;
       case ApiItemKind.Interface:
-        baseName += '.' + qualifiedName;
+        baseName += '.' + qualifiedName + '_i';
+        break;
     }
   }
   return baseName + '.md';