Expose demo transport links

sites/ampgateway-online/index.html

@@ -201,7 +201,11 @@
               Public explanation site with interactive topology views, deployment flow,
               and links into the clean docs.
             </p>
-            <a href="https://ampgateway.online">ampgateway.online</a>
+            <div class="transport-links" aria-label="ampgateway.online transport links">
+              <a class="transport-link" href="https://ampgateway.online/">Clearnet</a>
+              <a class="transport-link" href="http://bn5uppe4zrop2ljsmjtoxtc4bhzs42kj4c6zvme565gz6x6l32ico3id.onion/">Tor onion</a>
+              <a class="transport-link" href="http://vfhcumcxtbysxr6wvbpdytb6jpslcqlo3j6e35w7s63el5vsorca.b32.i2p/">I2P b32</a>
+            </div>
           </article>
           <article class="domain-card">
             <p class="domain-label">VPS example</p>
@@ -210,7 +214,11 @@
               Planned all-transport reference deployment on a normal server, useful for
               showing the complete package, state, supervisor, start, address, and health path.
             </p>
-            <a href="https://ampgateway.site">ampgateway.site</a>
+            <div class="transport-links" aria-label="ampgateway.site transport links">
+              <a class="transport-link" href="https://ampgateway.site/">Clearnet</a>
+              <a class="transport-link" href="http://fy2zosxp4oqqcacxcegvwshtmsiiyztnwoinbm46yoig4o3kveidotyd.onion/">Tor onion</a>
+              <a class="transport-link" href="http://zajoo4f5dso64tvtazas27se2galkihgpfgoy636uxm7loo42cdq.b32.i2p/">I2P b32</a>
+            </div>
           </article>
           <article class="domain-card">
             <p class="domain-label">Behind-router example</p>