Update README.md

oc adm command fix

Author: fsolen

README.md

@@ -121,7 +121,7 @@ Many containers expect to run as root (and therefore edit all the contents of th
 If you are running your own cluster and want to run a container as root, you can grant that permission to the containers in your current project with the following command:
 
     # Gives the default service account in the current project access to run as UID 0 (root)
-    oc adm add-scc-to-user anyuid -z default
+    oc adm policy add-scc-to-user anyuid -z default
 
 See the [security documentation](https://docs.okd.io/latest/authentication/managing-security-context-constraints.html) more on confining applications.