Create wiki home page
Wiki home page https://gitlab.gnome.org/GNOME/gnome-software/-/wikis/home should have content which references to following wiki pages.
- How-to-reinstall-a-web-app.md
- Software-licensing.md
- Software-metadata.md
Home page is currently not set making it hard to get to the above wiki pages.
#2071 tries to move from wiki to Mallard, but still I guess we still have to maintain the wiki for old gnome-software
versions which point to the link ?