add overview

Author: ianwhytez

articles/baremetal-infrastructure/index.yml

@@ -32,6 +32,8 @@ landingContent:
     linkLists:
       - linkListType: overview
         links:
+          - text: Overview
+            url: ../virtual-machines/workloads/sap/hana-overview-architecture.md?context=%2fazure%2fbaremetal-infrastructure%2fworkloads%2fsap%2fcontext
           - text: Certification
             url: ../virtual-machines/workloads/sap/hana-certification.md?context=%2fazure%2fbaremetal-infrastructure%2fworkloads%2fsap%2fcontext%2fcontext
           - text: Available SKUs for HLI

articles/baremetal-infrastructure/toc.yml

@@ -14,6 +14,8 @@
 
   - name: SAP HANA on Azure (Large Instances)
     items:
+    - name: Overview
+      href: ../virtual-machines/workloads/sap/hana-overview-architecture.md?context=%2fazure%2fbaremetal-infrastructure%2fworkloads%2fsap%2fcontext
     - name: Certification
       href: ../virtual-machines/workloads/sap/hana-certification.md?context=%2fazure%2fbaremetal-infrastructure%2fworkloads%2fsap%2fcontext%2fcontext
     - name: Available SKUs for HLI