Mac OS -> macOS (acrolinx)

Author: Jak-MS

articles/vpn-gateway/TOC.yml

@@ -221,7 +221,7 @@
       items:
       - name: Point-to-Site connection problems
         href: vpn-gateway-troubleshoot-vpn-point-to-site-connection-problems.md
-      - name: Point-to-Site connection problems - Mac OS X VPN client
+      - name: Point-to-Site connection problems - macOS X VPN client
         href: vpn-gateway-troubleshoot-point-to-site-osx-ikev2.md
       - name: Point-to-Site - Azure AD authentication
         href: troubleshoot-ad-vpn-client.md