Added TOC entry

Author: Michael Bender

articles/networking/TOC.yml

@@ -40,6 +40,8 @@
       href: ../vpn-gateway/vpn-gateway-about-vpngateways.md?toc=%2fazure%2fnetworking%2ftoc.json
     - name: Cross-premises connectivity - dedicated private
       href: ../expressroute/expressroute-workflows.md?toc=%2fazure%2fnetworking%2ftoc.json
+    - name: Load balancing and content delivery
+      href: load-balancer-content-delivery/index.yml
     - name: Backend connectivity interoperability
       items:
       - name: Preface and Test Setup