Add some documentation about use with boot2docker
Add some documentation about use with boot2docker

jeremiahsavage/cwltool,dleehr/cwltool,common-workflow-language/cwltool,SciDAP/cwltool,jeremiahsavage/cwltool,dleehr/cwltool,jeremiahsavage/cwltool,common-workflow-language/cwltool,chapmanb/cwltool,SciDAP/cwltool,chapmanb/cwltool,chapmanb/cwltool,dleehr/cwltool,common-workflow-language/cwltool,chapmanb/cwltool,SciDAP/cwltool,dleehr/cwltool,jeremiahsavage/cwltool,SciDAP/cwltool