tests: update build status link for entropy in README
tests: update build status link for entropy in README

GeneAssembly/biosal,sebhtml/biosal,GeneAssembly/biosal,sebhtml/biosal,sebhtml/biosal,GeneAssembly/biosal,sebhtml/biosal,sebhtml/biosal,sebhtml/biosal,GeneAssembly/biosal,GeneAssembly/biosal,GeneAssembly/biosal