add copyright

web/app/components/root/__copyright-link/root__copyright-link.scss

@@ -0,0 +1,3 @@
+.root__copyright-link {
+  color: #aaa;
+}

web/app/components/root/__copyright/root__copyright.scss

@@ -0,0 +1,6 @@
+.root__copyright {
+  margin: 48px 0 0;
+  font-size: 12px;
+  text-align: right;
+  color: #aaa;
+}

web/app/components/root/index.js

@@ -2,6 +2,8 @@ export { default } from './root';
 
 require('./root.scss');
 
+require('./__copyright/root__copyright.scss');
+require('./__copyright-link/root__copyright-link.scss');
 require('./__input/root__input.scss');
 require('./__preloader/root__preloader.scss');
 require('./__pinned-comment/root__pinned-comment.scss');

web/app/components/root/root.jsx

@@ -278,6 +278,10 @@ export default class Root extends Component {
               </div>
             )
           }
+
+          <p className="root__copyright">
+            Powered by <a href="https://remark42.com/" className="root__copyright-link">Remark42</a>
+          </p>
         </div>
       </div>
     );