Updated description for Managed Bookmarks policy.

components/policy/resources/policy_templates.json

Index: components/policy/resources/policy_templates.json
diff --git a/components/policy/resources/policy_templates.json b/components/policy/resources/policy_templates.json
index 43219ae6ac2d3c42fa515a56b65053311813b812..6ca870f5d396578278e295c2e714a73c692f61c2 100644
--- a/components/policy/resources/policy_templates.json
+++ b/components/policy/resources/policy_templates.json
@@ -7512,6 +7512,8 @@
       },
       'example_value': [
         {
+          "toplevel_name": "My managed bookmarks"
+        }, {
           "name": "Google",
           "url": "google.com"
         }, {
@@ -7550,7 +7552,7 @@
 
       These bookmarks are placed in a "Managed bookmarks" folder that can't be modified by the user, but the user can choose to hide it from the bookmark bar. Managed bookmarks are not synced to the user account and can't be modified by extensions.
 
-      The folder name for the bookmarks is customizable by adding a {"toplevel_name": "some name"} list item.''',
+      Starting with release 51, the folder name for the bookmarks is customizable by adding a {"toplevel_name": "some name"} list item.''',
     },
     {
       'name': 'DataCompressionProxyEnabled',