MCM - Add Av2 note for ghissue 122767

Author: bandersmsft

articles/virtual-machines/prepay-reserved-vm-instances.md

@@ -69,6 +69,8 @@ Your usage file shows your charges by billing period and daily usage. For inform
 Reserved VM Instances are available for most VM sizes with some exceptions. Reservation discounts don't apply for the following VMs:
 
 - **VM series** - A-series, or G-series.
+    >[!NOTE]
+    > A-series VMs differ from Av2 series VMs. Av2 series VMs are available for reservation purchase.
 
 - **Preview or Promo VMs** - Any VM-series or size that is in preview or uses promotional meter.