Change your channel information in News Publisher
After you add information about a channel, users with the Administrator role can update the channel name, website, and audience information at any time. Users with the Editor in Chief, Editor, or Sales roles can view the information, but not edit it.
Go to icloud.com, sign in, then click News Publisher.
Go to Settings > Channel Info, then make your changes.
To change the territories where the channel is available, click the link below Availability in Territories.
Note: If you select a territory where Apple News isn’t currently available, your selection takes effect only if Apple News becomes available there.
Click Save.
Important: If you changed your channel name, be sure to update your logo, channel icon, and cover image to match.