Update confidential-vm-faq.yml

Adding comment for in-guest memory dumps

Author: michamcr

articles/confidential-computing/confidential-vm-faq.yml

@@ -71,6 +71,11 @@ sections:
         answer: |
           Yes, but only if the pagefile.sys is located on the encrypted OS disk.
           On confidential VMs with a temp disk, the pagefile.sys file can be moved to the encrypted OS [Tips for moving pagefile.sys to the c:\ drive](../virtual-machines/windows/change-drive-letter.md).
+
+      - question: | 
+          Can I generate a memory dump from within my confidential VM?
+        answer: | 
+          No, this capability does not exist for confidential VMs.
                   
       - question: |
           How can I deploy Azure confidential VMs?