Add info on x-common for generator
Add info on x-common for generator

exercism/xperl6,mienaikage/exercism-perl6,exercism/xperl6,mienaikage/xperl6,mienaikage/exercism-perl6,mienaikage/xperl6,exercism/xperl6,mienaikage/exercism-perl6,mienaikage/xperl6