Add another missing RC type to toc.yaml (#924)

Author: lahirumaramba

docgen/content-sources/node/toc.yaml

@@ -285,6 +285,8 @@ toc:
     path: /docs/reference/admin/node/admin.remoteConfig.InAppDefaultValue
   - title: "Version"
     path: /docs/reference/admin/node/admin.remoteConfig.Version
+  - title: "ListVersionsResult"
+    path: /docs/reference/admin/node/admin.remoteConfig.ListVersionsResult
   - title: "ListVersionsOptions"
     path: /docs/reference/admin/node/admin.remoteConfig.ListVersionsOptions
   - title: "RemoteConfigUser"