README.md : add missing ','

Small typo, a ',' was missing on the minimal exampel conf
Merge pull request #201 from chtitux/patch-1

README.md : add missing ','
fix concat broken on windows due to case sensitive regexp -- made it case insensitive
Merge pull request #204 from GeoffWilliams/windows_case_fix

fix concat broken on windows due to case sensitive regexp -- fixes MODULES-1203