Addition of Bolt docs in dropdown menu

Author: lidiazuin

src/partials/navbar-end.hbs

@@ -133,6 +133,7 @@
                 <li><a href="https://docs.spring.io/spring-data/neo4j/docs/current/reference/html/#reference" class="project-link">Spring Data Neo4j</a></li>
                 <li><a href="/docs/http-api/current/" class="project-link">HTTP API</a></li>
                 <li><a href="/docs/query-api/current/" class="project-link">Neo4j Query API</a></li>
+                <li><a href="/docs/bolt/current/" class="project-link">Bolt</a></li>
               </ul>
             </div>