change name of title in card for aac for consistency

Author: asudbring

articles/private-link/index.yml

@@ -74,7 +74,7 @@ landingContent:
             url: /rest/api/virtualnetwork/privatelinkservices
 
 
-  - title: Architectural Guidance
+  - title: Learn about Private Link architecture
     linkLists:
       - linkListType: concept
         links:

articles/virtual-network/index.yml

@@ -187,7 +187,7 @@ landingContent:
             url: ./ip-services/manage-public-ip-address-prefix.md
 
   # Card
-  - title: Architectural Guidance
+  - title: Learn about Virtual Network architecture
     linkLists:
       - linkListType: overview
         links:

articles/virtual-network/ip-services/index.yml

@@ -90,7 +90,7 @@ landingContent:
           - text: Assign multiple IP addresses to virtual machines
             url: virtual-network-multiple-ip-addresses-portal.md
 
-  - title: Architectural Guidance
+  - title: Learn about IP services architecture
     linkLists:
       - linkListType: concept
         links:

articles/virtual-network/nat-gateway/index.yml

@@ -80,7 +80,7 @@ landingContent:
             url: troubleshoot-nat.md
 
   # Card (optional)
-  - title: Architectural Guidance
+  - title: Learn about Virtual Network NAT architecture
     linkLists:
       - linkListType: overview
         links: