prevent verify-misspelling failing on releases
prevent verify-misspelling failing on releases

Removes pull request subjects from release notes and checks
the remainder of text.

kubernetes/kops,gambol99/kops,aledbf/kops,kubernetes/kops,robinpercy/kops,aledbf/kops,gambol99/kops,aledbf/kops,kubernetes/kops,justinsb/kops,aledbf/kops,blakebarnett/kops,blakebarnett/kops,justinsb/kops,justinsb/kops,robinpercy/kops,blakebarnett/kops,blakebarnett/kops,gambol99/kops,robinpercy/kops,robinpercy/kops,gambol99/kops