Use brouter.de testing instance by default

index.html

@@ -119,7 +119,7 @@
             </p>
             <p>
                 <label for="brouter-url">BRouter URL: </label>
-                <input type="text" name="brouter_url" id="brouter-url" value="http://127.0.0.1:17777" />
+                <input type="text" name="brouter_url" id="brouter-url" value="http://brouter.de:7777" />
                 <p class="footnote">Your BRouter instance should provide <a href="https://developer.mozilla.org/fr/docs/Web/HTTP/CORS">CORS</a> headers. Otherwise, you can use an extension such as <a href="https://addons.mozilla.org/fr/firefox/addon/cors-everywhere/">CORS Everywhere</a>.</p>
             </p>
             <p>