Update SAML SSO for GitLab.com groups page

doc/user/group/saml_sso/index.md

@@ -18,7 +18,7 @@ If you follow our guidance to automate user provisioning using [SCIM](scim_setup
 User synchronization of SAML SSO groups is supported through [SCIM](scim_setup.md). SCIM supports adding and removing users from the GitLab group.
 For example, if you remove a user from the SCIM app, SCIM removes that same user from the GitLab group.
 
-SAML SSO is not supported at the subgroup level.
+SAML SSO is only configurable at the top-level group.
 
 ## Configuring your Identity Provider