Fix VPC abbrev conflict and add secret key allowlist

Author: mwunderl

.doc_gen/metadata/vpc_gs_metadata.yaml

@@ -1,6 +1,6 @@
 vpc_GettingStartedCLI:
   title: Getting started with Amazon VPC
-  title_abbrev: VPC getting started
+  title_abbrev: Create a VPC
   synopsis_list:
     - Create a VPC
     - Create subnets
@@ -26,7 +26,7 @@ vpc_GettingStartedCLI:
 
 vpc_GettingStartedIpam:
   title: Get started using Amazon VPC IPAM using the CLI
-  title_abbrev: VPC getting started
+  title_abbrev: Create a VPC
   synopsis_list:
   - Set up and configure Amazon VPC IP Address Manager (IPAM) using the CLI.
   - Create an IPAM with operating regions (e.g., us-east-1, us-west-2).
@@ -55,7 +55,7 @@ vpc_GettingStartedIpam:
 
 vpc_GettingStartedPrivate:
   title: Create a VPC with private subnets and NAT gateways using the CLI
-  title_abbrev: VPC getting started
+  title_abbrev: Create a VPC
   synopsis_list:
   - Create a VPC with private subnets and NAT gateways using the CLI.
   - Set up the necessary components including VPC, subnets, route tables, and NAT gateways.

.doc_gen/validation.yaml

@@ -0,0 +1,2 @@
+allow_list:
+  - "bPxRfiCYEXAMPLEKEY/wJalrXUtnFEMI/K7MDENG"