updated readme

Author: mhamroz

README.md

@@ -113,6 +113,7 @@ module "catalystcenter" {
 | [catalystcenter_fabric_l3_handoff_sda_transit.sda_transit](https://registry.terraform.io/providers/CiscoDevNet/catalystcenter/latest/docs/resources/fabric_l3_handoff_sda_transit) | resource |
 | [catalystcenter_fabric_l3_virtual_network.global_l3_vn](https://registry.terraform.io/providers/CiscoDevNet/catalystcenter/latest/docs/resources/fabric_l3_virtual_network) | resource |
 | [catalystcenter_fabric_l3_virtual_network.l3_vn](https://registry.terraform.io/providers/CiscoDevNet/catalystcenter/latest/docs/resources/fabric_l3_virtual_network) | resource |
+| [catalystcenter_fabric_multicast_virtual_networks.multicast](https://registry.terraform.io/providers/CiscoDevNet/catalystcenter/latest/docs/resources/fabric_multicast_virtual_networks) | resource |
 | [catalystcenter_fabric_port_assignments.port_assignments](https://registry.terraform.io/providers/CiscoDevNet/catalystcenter/latest/docs/resources/fabric_port_assignments) | resource |
 | [catalystcenter_fabric_site.fabric_site](https://registry.terraform.io/providers/CiscoDevNet/catalystcenter/latest/docs/resources/fabric_site) | resource |
 | [catalystcenter_fabric_vlan_to_ssid.vlan_to_ssid](https://registry.terraform.io/providers/CiscoDevNet/catalystcenter/latest/docs/resources/fabric_vlan_to_ssid) | resource |