Migration document

Author: ombellare

website/docs/r/secure_malware_policy.md

@@ -12,6 +12,19 @@ Retrieves the information of an existing Sysdig Secure Malware Policy.
 
 -> **Note:** Sysdig Terraform Provider is under rapid development at this point. If you experience any issue or discrepancy while using it, please make sure you have the latest version. If the issue persists, or you have a Feature Request to support an additional set of resources, please open a [new issue](https://github.com/sysdiglabs/terraform-provider-sysdig/issues/new) in the GitHub repository.
 
+-> **Note:** Due to a bug in the schema for `additional_hashes` and `ignore_hashes`, you might have faced issues with multiple hash values for these fields with the older version of the provider. After updating to the latest provider version, please update the `additional_hashes` and `ignore_hashes` fields in the malware policy definition in your terraform files to use a list of hashes like shown below, which should now allow multiple hashes:
+```
+additional_hashes = {
+    hash = "304ef4cdda3463b24bf53f9cdd69ad3ecdab0842e7e70e2f3cfbb9f14e1c4ae6"
+}
+
+to
+
+additional_hashes = [
+    "304ef4cdda3463b24bf53f9cdd69ad3ecdab0842e7e70e2f3cfbb9f14e1c4ae6"
+]
+```
+
 ## Example Usage
 
 ```terraform