Update toc.yml

Clarify TOC entry for n-series-driver-setup.md

Author: rick-man

articles/virtual-machines/windows/toc.yml

@@ -225,7 +225,7 @@
         href: ../nvv3-series.md?toc=/azure/virtual-machines/windows/toc.json&bc=/azure/virtual-machines/windows/breadcrumb/toc.json
       - name: NVv4-series
         href: ../nvv4-series.md?toc=/azure/virtual-machines/windows/toc.json&bc=/azure/virtual-machines/windows/breadcrumb/toc.json
-      - name: Setup GPU drivers
+      - name: Setup NVIDIA GPU drivers
         href: n-series-driver-setup.md
       - name: Setup AMD GPU drivers
         href: n-series-amd-driver-setup.md