Update TOC.yml

Author: cynthn

articles/virtual-machines/TOC.yml

@@ -329,8 +329,9 @@
         displayName: HPC, high performance compute, sizes, size
         href: sizes-hpc.md
       - name: H-series
-        href: h-series.md
         items: 
+        - name: H-series overview
+          href: h-series.md
         - name: H-series retirement
           href: ./workloads/hpc/h-series-retirement.md
       - name: HB-series
@@ -340,6 +341,8 @@
           href: ./workloads/hpc/hb-series-overview.md
         - name: Performance
           href: ./workloads/hpc/hb-series-performance.md  
+        - name: HB-series retirement
+          href: ./workloads/hpc/hb-series-retirement.md
       - name: HBv2-series
         href: hbv2-series.md
         items:
@@ -361,8 +364,6 @@
           href: hc-series-overview.md
       - name: Performance
         href: ./workloads/hpc/hc-series-performance.md
-      - name: HB-series retirement
-        href: ./workloads/hpc/hb-series-retirement.md
     - name: Previous generations
       displayName: older, retired, expired, deprecated
       href: sizes-previous-gen.md