Add issue link from new SAML provisioned acct functionality

doc/user/group/saml_sso/index.md

@@ -222,6 +222,8 @@ On subsequent visits, you should be able to go [sign in to GitLab.com with SAML]
 
 ### Configure user settings from SAML response
 
+[Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/263661) in GitLab 13.7.
+
 GitLab allows setting certain user attributes based on values from the SAML response.
 This affects users created on first sign-in via Group SAML. Existing users'
 attributes are not affected regardless of the values sent in the SAML response.