Description of problem: 

In the documentation , in the procedure section, while downloading the openshift-migration-legacy operator, the below image is given,

~~~
registry.redhat.io/rhmtc/openshift-migration-legacy-rhel8-operator:v1.8):/operator.yml ./
~~~

While executing the image, we are getting below error,
~~~ 
DEBU[0000] Error pulling candidate registry.redhat.io/rhmtc/openshift-migration-legacy-rhel8-operator:v1.8: initializing source docker://registry.redhat.io/rhmtc/openshift-migration-legacy-rhel8-operator:v1.8: reading manifest v1.8 in registry.redhat.io/rhmtc/openshift-migration-legacy-rhel8-operator: manifest unknown: manifest unknown

Error: initializing source docker://registry.redhat.io/rhmtc/openshift-migration-legacy-rhel8-operator:v1.8: reading manifest v1.8 in registry.redhat.io/rhmtc/openshift-migration-legacy-rhel8-operator: manifest unknown: manifest unknown
~~~

In the catalog, latest image tag available is v1.7.15,  v1.8 does not exist.

Need to make changes in the documentation  to add below command in both step 2 and 7 of procedure,

~~~
podman cp $(podman create registry.redhat.io/rhmtc/openshift-migration-legacy-rhel8-operator:v1.7):/operator.yml ./
~~~