Point to related projects

doc/EN/support.org

 ** Money
 At the present time this project is not seeking any funding. There is no crowdfunding campaign and no slick marketing video. Those aren't ruled out as future possibilities, but for now they're just not needed.
 
+If you find this project useful then you may wish to consider donating to [[./related.html][one of the related projects]] upon which it is based.
+
 ** Testing and reporting bugs
 Testing of the install on different hardware. Also pentesting on test installations to find vulnerabilities.