Update distrib.makefile after README.md renaming
Update distrib.makefile after README.md renaming

Fixes breakage after aa3fe67d.

Herve-M/winsparkle,artillery/winsparkle,artillery/winsparkle,dsuess/winsparkle,bristol-instruments/winsparkle,bristol-instruments/winsparkle,alamaison/winsparkle,nickdademo/winsparkle,dsuess/winsparkle,drizt/winsparkle,Herve-M/winsparkle,nickdademo/winsparkle,drizt/winsparkle,alamaison/winsparkle