Update CHANGELOG.md
Update CHANGELOG.md

updating the changelog for the fix Fix wrong treatment of `appendLocationNameToHeader` when using `ukmetofficedatahub`
MichMich/MagicMirror,Tyvonne/MagicMirror,Tyvonne/MagicMirror,MichMich/MagicMirror,MichMich/MagicMirror,Tyvonne/MagicMirror,MichMich/MagicMirror,Tyvonne/MagicMirror