Fixing Acrolinx and alt text

Author: v-dirichards

articles/firewall/firewall-preview.md

@@ -179,7 +179,7 @@ You can now easily upgrade your existing Firewall Standard SKU to Premium SKU as
 
 In the upgrade process, you can select the policy to be attached to the upgraded Premium SKU. You can select an existing Premium Policy or an existing Standard Policy. You can use your existing Standard policy and let the system automatically duplicate, upgrade to Premium Policy, and then attach it to the newly created Premium Firewall.
 
-This new capability is available through the Azure portal as as shown here, as well as via PowerShell and Terraform simply by changing the sku_tier attribute.
+This new capability is available through the Azure portal as shown here, as well as via PowerShell and Terraform simply by changing the sku_tier attribute.
 
 :::image type="content" source="media/premium-features/upgrade.png" alt-text="Screenshot showing SKU upgrade" lightbox="media/premium-features/upgrade.png":::
 

articles/firewall/premium-features.md

@@ -81,7 +81,7 @@ The IDPS Bypass List allows you to not filter traffic to any of the IP addresses
 
 In Azure Firewall Premium IDPS, private IP address ranges are used to identify if traffic is inbound, outbound, or internal (East-West). Each signature is applied on specific traffic direction, as indicated in the signature rules table. By default, only ranges defined by IANA RFC 1918 are considered private IP addresses. So traffic sent from a private IP address range to a private IP address range is considered internal. To modify your private IP addresses, you can now easily edit, remove, or add ranges as needed.
 
-:::image type="content" source="media/premium-features/idps-private-ip.png" alt-text="Screenshot showing I D P S private IP address ranges.":::
+:::image type="content" source="media/premium-features/idps-private-ip.png" alt-text="Screenshot showing IDPS private IP address ranges.":::
 
 ### IDPS signature rules