Add link emoji to link post title

themes/leilukin/feathers/link.twig

@@ -1,7 +1,7 @@
 {% extends "content" ~ DIR ~ "post.twig" %}
 
 {% block content %}
-<h2 class="post_title">
+<h2 class="post_title">🔗
 <a href="{{ post.source | fix(true) }}" rel="external">{{ post.name }}</a>
 </h2>
 <section class="description" aria-label="{{ 'Text Content' | translate }}">