Fix documentation of owned-by option in groups REST API

Bug: Issue 12698
Change-Id: I6c111d2d1b8f73dc821b48e7238e27c59f8b7c6f
diff --git a/pages/site/releases/2.16.md b/pages/site/releases/2.16.md
index 47034fe..9688c10 100644
--- a/pages/site/releases/2.16.md
+++ b/pages/site/releases/2.16.md
@@ -454,7 +454,7 @@
 
 #### [Groups Endpoints](https://gerrit-documentation.storage.googleapis.com/Documentation/2.16/rest-api-groups.html)
 
-* New option [`?ownedBy`](https://gerrit-documentation.storage.googleapis.com/Documentation/2.16/rest-api-groups.html#_find_groups_that_are_owned_by_another_group)
+* New option [`?owned-by`](https://gerrit-documentation.storage.googleapis.com/Documentation/2.16/rest-api-groups.html#_find_groups_that_are_owned_by_another_group)
   to find groups that are owned by another group
 
 #### [Project Endpoints](https://gerrit-documentation.storage.googleapis.com/Documentation/2.16/rest-api-projects.html)