Minor fixes to the doc build script.
Minor fixes to the doc build script.

CocoMake7/CocoBlockly,adrgerez/ardublockly,carlosperate/ardublockly,CocoMake7/CocoBlockly,adrgerez/ardublockly,carlosperate/ardublockly,CocoMake7/CocoBlockly,carlosperate/ardublockly,adrgerez/ardublockly