add ElasticSearch notes

etc/grafana/grafana.ini

@@ -33,13 +33,16 @@ default_theme = dark
 disable_login = true
 disable_login_form = true
 
+[auth.anonymous]
+hide_version = true
+
 [auth.grafana_com]
 enabled = true
 allow_sign_up = false
-client_id =
-client_secret =
+client_id = XXXXXX
+client_secret = XXXXXX
 scopes = user:email
-allowed_organizations =
+allowed_organizations = XXXXXX
 
 [metrics]
 enabled = false