Add note about rerunning the install being safe to install docs
Add note about rerunning the install being safe to install docs

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