Add non-command MANUALs into the target of MAKEMANUALHTML.
Add non-command MANUALs into the target of MAKEMANUALHTML.

usp-engineers-community/Open-usp-Tukubai,usp-engineers-community/Open-usp-Tukubai,usp-engineers-community/Open-usp-Tukubai,usp-engineers-community/Open-usp-Tukubai