https://qgis.org/en/site/about/sponsorship.html is totally outdated and should be removed.
People still use this site, because it is indexed in Google. But it was replaced by https://www.qgis.org/en/site/about/sustaining_members.html
How can we clean up old webpages? At https://github.com/qgis/QGIS-Website/tree/master/source/site/about - the sponsorship source file is not available anymore, but in our website it is.
Is this a flaw in the update mechanism of the website, or did I not correctly remove the old file "sponsorship"?
Thank you for your help!