Fix Krita download link
The current Krita download link, https://krita.org/download, leads to a 404 page. I replaced it with the https://krita.org/en/download English download page, because I could not find a language-adapting download page.
The current Krita download link, https://krita.org/download, leads to a 404 page. I replaced it with the https://krita.org/en/download English download page, because I could not find a language-adapting download page.