CFY-2043 add docstring to scale workflow
CFY-2043 add docstring to scale workflow

cloudify-cosmo/cloudify-plugins-common,cloudify-cosmo/cloudify-plugins-common,isaac-s/cloudify-plugins-common,xdegenne/cloudify-plugins-common,codilime/cloudify-plugins-common,cloudify-cosmo/cloudify-plugins-common,codilime/cloudify-plugins-common,geokala/cloudify-plugins-common,codilime/cloudify-plugins-common,isaac-s/cloudify-plugins-common,isaac-s/cloudify-plugins-common