Update certification badge to v1.11
Update certification badge to v1.11

Pending on https://github.com/cncf/k8s-conformance/pull/341

Signed-off-by: Vince Prignano <9b50d1f90e62bf2b07ce4a2c12ae735ccb4c3d05@vincepri.com>

heptio/aws-quickstart,heptio/aws-quickstart