add symfony/esendex-notifier integration docs

Author: jschaedl

notifier.rst

@@ -63,17 +63,18 @@ OvhCloud    ``symfony/ovhcloud-notifier``      ``ovhcloud://APPLICATION_KEY:APPL
 Sinch       ``symfony/sinch-notifier``         ``sinch://ACCOUNT_ID:AUTH_TOKEN@default?from=FROM``
 FreeMobile  ``symfony/free-mobile-notifier``   ``freemobile://LOGIN:PASSWORD@default?phone=PHONE``
 Smsapi      ``symfony/smsapi-notifier``        ``smsapi://TOKEN@default?from=FROM``
-Infobip     ``symfony/infobip-notifier``     ``infobip://TOKEN@default?from=FROM``
-Mobyt       ``symfony/mobyt-notifier``       ``mobyt://USER_KEY:ACCESS_TOKEN@default?from=FROM``
-==========  ===============================  ====================================================
+Infobip     ``symfony/infobip-notifier``       ``infobip://TOKEN@default?from=FROM``
+Mobyt       ``symfony/mobyt-notifier``         ``mobyt://USER_KEY:ACCESS_TOKEN@default?from=FROM``
+Esendex     ``symfony/esendex-notifier``       ``esendex://USER_NAME:PASSWORD@default?accountreference=ACCOUNT_REFERENCE&from=FROM``
+==========  ================================  ====================================================
 
 .. versionadded:: 5.1
 
     The OvhCloud, Sinch and FreeMobile integrations were introduced in Symfony 5.1.
 
 .. versionadded:: 5.2
 
-    The Smsapi, Infobip and Mobyt integrations were introduced in Symfony 5.2.
+    The Smsapi, Infobip, Mobyt and Esendex integrations were introduced in Symfony 5.2.
 
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