chore: update CHANGELOG.md for #322

CHANGELOG.md

@@ -6,6 +6,7 @@
 * **New Resource:** `resource/cloudavenue_network_app_port_profile` - Is a new resource type that allows you to create a port profile for a network application. ([GH-319](https://github.com/orange-cloudavenue/terraform-provider-cloudavenue/issues/319))
 * **New Resource:** `resource/cloudavenue_publicip` is a new resource that can be used to manage public IP addresses in Cloud Avenue. ([GH-336](https://github.com/orange-cloudavenue/terraform-provider-cloudavenue/issues/336))
 * **New Resource:** `resource/cloudavenue_vcda_ip` - Is a new resource allows you to declare or remove your on-premises IP address for the DRaaS service ([GH-335](https://github.com/orange-cloudavenue/terraform-provider-cloudavenue/issues/335))
+* **New Datasource:** `datasource/cloudavenue_vm` - Data source allows you to read information about a virtual machine. ([GH-322](https://github.com/orange-cloudavenue/terraform-provider-cloudavenue/issues/322))
 
 ### :tada: **Improvements**