Add coveragerc
Add coveragerc

ageis/securedrop,garrettr/securedrop,conorsch/securedrop,ehartsuyker/securedrop,heartsucker/securedrop,conorsch/securedrop,conorsch/securedrop,ehartsuyker/securedrop,micahflee/securedrop,ehartsuyker/securedrop,heartsucker/securedrop,garrettr/securedrop,ehartsuyker/securedrop,ehartsuyker/securedrop,conorsch/securedrop,ehartsuyker/securedrop,micahflee/securedrop,garrettr/securedrop,conorsch/securedrop,micahflee/securedrop,ageis/securedrop,heartsucker/securedrop,garrettr/securedrop,heartsucker/securedrop,ageis/securedrop,micahflee/securedrop,ageis/securedrop,heartsucker/securedrop