[UPD] addons table in README.md

README.md

@@ -19,6 +19,7 @@ addon | version | summary
 [mail_as_letter](mail_as_letter/) | 9.0.1.0.0 | This module allows to download a mail message as a pdf letter.
 [mail_attach_existing_attachment](mail_attach_existing_attachment/) | 9.0.1.0.0 | Adding attachment on the object by sending this one
 [mail_debrand](mail_debrand/) | 9.0.1.0.0 | Remove Odoo branding in sent emails
+[mail_digest](mail_digest/) | 9.0.1.0.0 | Basic digest mail handling.
 [mail_optional_autofollow](mail_optional_autofollow/) | 9.0.1.0.0 | Choose if you want to automatically add new recipients as followers on mail.compose.message
 [mail_optional_follower_notification](mail_optional_follower_notification/) | 9.0.1.0.0 | Choose if you want to automatically notify followers on mail.compose.message
 [mail_tracking](mail_tracking/) | 9.0.3.0.1 | Email tracking system for all mails sent