diff --git a/docs/Savaneprod/2019-12-16-wildcard-lets-encrypt-certificate.md b/docs/Savaneprod/2019-12-16-wildcard-lets-encrypt-certificate.md
index 51f4a14..fd2d691 100644
--- a/docs/Savaneprod/2019-12-16-wildcard-lets-encrypt-certificate.md
+++ b/docs/Savaneprod/2019-12-16-wildcard-lets-encrypt-certificate.md
@@ -49,6 +49,8 @@ export GANDI_LIVEDNS_KEY="la clef récupérée chez Gandi"
 
 export SYNO_Certificate="savaneprod.fr cert"
 export SYNO_Create=0
+# When run locally, use an automatically created temp admin. Deletes it after use.
+# https://github.com/acmesh-official/acme.sh/wiki/deployhooks#20-deploy-the-certificate-to-synology-dsm
 export SYNO_USE_TEMP_ADMIN=1
 
 echo "*********************************************" 2>&1 | tee -a $file