Update readme.md
Update readme.md

removed line break and fixed line number for bigger explosion (as per the pack you distribute)
wadael/materials,vorburger/materials,DevCamp4Kids/materials,devoxx4kids/materials,devoxx4kids/materials,eloudsa/materials,henkjurriens/materials,henkjurriens/materials,vorburger/materials,DevCamp4Kids/materials,devoxx4kids/materials,cristinanegrean/materials,ooms/materials,devoxx4kids/materials,devoxx4kids/materials,ooms/materials,cristinanegrean/materials,wadael/materials,ooms/materials,devoxx4kids/materials,wadael/materials,henkjurriens/materials,eloudsa/materials,cristinanegrean/materials,devoxx4kids/materials,DevCamp4Kids/materials,vorburger/materials,henkjurriens/materials,ooms/materials,ooms/materials,cristinanegrean/materials,ooms/materials,DevCamp4Kids/materials,wadael/materials,vorburger/materials,ooms/materials,eloudsa/materials