OSDOCS-11404: fix minor typo

Author: jeana-redhat

modules/machineset-azure-capacity-reservation.adoc

@@ -71,7 +71,7 @@ spec:
 [source,terminal]
 ----
 ifndef::cpmso[]
-$ oc oc get machines.machine.openshift.io \
+$ oc get machines.machine.openshift.io \
   -n openshift-machine-api \
   -l machine.openshift.io/cluster-api-machineset=<machine_set_name>
 endif::cpmso[]