deploying cnv: fix button name
deploying cnv: fix button name

The docs asked to click a button named "Create HyperConverged", but the
actual text on the button is "Create HyperConverged Cluster".

Signed-off-by: Dan Kenigsberg <184831158ae7531bcabc22617ed51e8717c81e93@redhat.com>

vikram-redhat/openshift-docs,vikram-redhat/openshift-docs,vikram-redhat/openshift-docs,vikram-redhat/openshift-docs,vikram-redhat/openshift-docs