Fix formatting in README
Fix formatting in README

rafaelmagu/supermarket,robbkidd/supermarket,chef/supermarket,jzohrab/supermarket,rafaelmagu/supermarket,leftathome/supermarket,jzohrab/supermarket,chef/supermarket,chef/supermarket,nellshamrell/supermarket,leftathome/supermarket,robbkidd/supermarket,dpnl87/supermarket,juliandunn/supermarket,dpnl87/supermarket,dpnl87/supermarket,jzohrab/supermarket,juliandunn/supermarket,nellshamrell/supermarket,tas50/supermarket,tas50/supermarket,tas50/supermarket,dpnl87/supermarket,robbkidd/supermarket,rafaelmagu/supermarket,chef/supermarket,leftathome/supermarket,jzohrab/supermarket,tas50/supermarket,rafaelmagu/supermarket,leftathome/supermarket,juliandunn/supermarket,chef/supermarket,robbkidd/supermarket,juliandunn/supermarket,nellshamrell/supermarket,nellshamrell/supermarket