add back capitalization for external links

Author: eiman-eltigani-ttd

web-integrations/google-secure-signals/server-side/views/header.html

@@ -37,7 +37,7 @@ <h1>Server-Side <%- identityName %> Integration Example with Google Secure Signa
       <br />
       <br />
       This assumes that the publisher has implemented <%- identityName %> 
-      <a href="<%- docsBaseUrl %>/guides/integration-publisher-server-side">Server-Side integration</a>
+      <a href="<%- docsBaseUrl %>/guides/integration-publisher-server-side">Server-Side Integration</a>
       on the back end and can pass the resulting <%- identityName %> identity response to the front end.
     </p>
   </body>