add example on how to add several version of a package
add example on how to add several version of a package

pierredup/composer,SpacePossum/composer,gencer/composer,fabpot/composer,localheinz/composer,staabm/composer,naderman/composer,alcohol/composer,andrerom/composer,dzuelke/composer,stof/composer,erasys/composer,vdm-io/composer,nicolas-grekas/composer,milleruk/composer,slbmeh/composer,johnstevenson/composer,composer/composer,stefangr/composer,floverdevel/composer