{AzureStorage} fixes #19734 (#19737)

fixes #19734

Docs link: https://learn.microsoft.com/en-us/powershell/module/az.storage/new-azstoragecontainersastoken?view=azps-8.3.0#-permission

The above documentation for New-AzStorageContainerSASToken doesn't explain what the valid values for -Permission are. All it states is "It is important to note that this is a string, like rwd". This PR addresses the issue and provides the hyperlink to supported permissions.

Author: navba-MSFT

src/Storage/Storage.Management/help/New-AzStorageContainerSASToken.md

@@ -180,7 +180,7 @@ Accept wildcard characters: False
 
 ### -Permission
 Specifies permissions for a storage container.
-It is important to note that this is a string, like `rwd` (for Read, Write and Delete).
+It is important to note that this is a string, like `rwd` (for Read, Write and Delete). The permissions that are supported for container resource type are described [here](https://learn.microsoft.com/rest/api/storageservices/create-service-sas#permissions-for-a-directory-container-or-blob).
 
 ```yaml
 Type: System.String