[FEATURE] Please provide example on how to use flags

### Summary

ewc hub deploy

### Motivation

Please provide example on how to use it or use single name if more needs to be provided
│ --security-groups -sg TEXT List of security groups (comma-separated in env var EWC_CLI_OPENSTACK_SECURITY_GROUPS or multiple arguments with the flag). │
│ --networks -n TEXT List of networks (comma-separated in env var EWC_CLI_OPENSTACK_NETWORKS or multiple arguments with the flag).

### Proposed Implementation

_No response_

### Alternatives Considered

_No response_

### Priority

None