Add reference to upcoming changes and changelog (page)

[mchaamsler]

Thanks for reviewing @ninaburg and/or @nnellen.

Changes page has been setup by/with @petrabaumann.

Cheers, a

[ninaburg]

Thank you @mchaamsler and @petrabaumann . Looks good to me to merge!
I just have a question about the date in the new page :

Upcoming changes
2025-11-12 - ICON Info: Improved precipitation, radiation, and temperature PDF forthcoming

This date (2025-11-12) is already in the past but is in the "Upcoming changes" section, which could be confusing. When is the user expected to see this changes in the OGD data? Thanks!

[mchaamsler]

Thanks for your review. That date is en example - will be resolved within the next two hours with the correcht date and a respective PDF.

Cheers, a

[petrabaumann]

Yes, you can just publish the last ICON info with the current date, if the date of November would be too confusing. It is just, that we did not have the possibility to publish this INFO for OGD then, but the information is still valuable.