Revise mailing list details and warning format

Updated mailing list subscription instructions and changed note formatting.

Author: mchaamsler

docs/e-forecast-data/e2-e3-numerical-weather-forecasting-model-changelog.md

@@ -8,32 +8,32 @@ This page announces upcoming changes to the configuration of the forecasts.
 
 These changes may concern the meteorology of the ICON model, or technical properties of the forecast data, like the GRIB2 coding.
 
+## Upcoming changes
+- 2025-11-12 - ICON Info: Improved precipitation, radiation, and temperature *PDF forthcoming*
+
 ## Stay in the loop!
 
 If you want to be informed about changes, you can join the ICON-CH1-EPS, and ICON-CH2-EPS mailing lists.
 
 Mails sent via these lists will also inform you about forecast delays, and cancellations.
 
-### Join the ICON-CH1-EPS mailing list
+**Join the ICON-CH1-EPS mailing list**
 
 To subscribe or unsubscribe, please send an email to ICON@news.meteoswiss.ch with
 - either `subscribe ICON-CH1-EPS_list,hans.muster@test.ch`
 - or `unsubscribe ICON-CH1-EPS_list,hans.muster@test.ch` as subject.
 
-### Join the ICON-CH2-EPS mailing list
+**Join the ICON-CH2-EPS mailing list**
 
 To subscribe or unsubscribe, please send an email to ICON@news.meteoswiss.ch with
 - either `subscribe ICON-CH2-EPS_list,hans.muster@test.ch`
 - or `unsubscribe ICON-CH2-EPS_list,hans.muster@test.ch` as subject.
 
-:::note
+:::warning
 Check carefully, that there is no blank between the name of the list, the comma, and the email address you wish to register and unregister, respectively.
 
 You will receive a confirmation mail to the email address from which you sent the registration. Please reply to this mail without any comments for the action to become effective. 
 :::
 
-## Upcoming changes
-- 2025-11-12 - ICON Info: Improved precipitation, radiation, and temperature *PDF forthcoming*
-
 ## Changelog
 - (Date: Title) *PDF forthcoming*