Update docusaurus.config.js

Minor heading change.

Signed-off-by: John M. Horan <johnmhoran@gmail.com>

Author: johnmhoran

website/docusaurus.config.js

@@ -155,7 +155,7 @@ const config = {
                     },
 
                     { label: 'Privacy Policy', to: '/privacy' },
-                    { label: 'Terms of Service', to: '/terms' },
+                    { label: 'Terms of Use', to: '/terms' },
                     { label: 'Credits', to: '/credits' },
                 ],
                 copyright: `Copyright AboutCode Europe ASBL.   All rights reserved.   Built with Docusaurus.`,