Correct example externalCoreFile casing
Correct example externalCoreFile casing

aledbf/kops,robinpercy/kops,aledbf/kops,justinsb/kops,kubernetes/kops,kubernetes/kops,robinpercy/kops,robinpercy/kops,kubernetes/kops,justinsb/kops,robinpercy/kops,aledbf/kops,aledbf/kops,justinsb/kops