[fix] unused closing tag removed

searx/templates/categories.html

 <div id="categories">
 {% for category in categories %}
     <div class="checkbox_container">
-        <input type="checkbox" id="checkbox_{{ category|replace(' ', '_') }}" name="category_{{ category }}" {% if category in selected_categories %}checked="checked"{% endif %} /></label><label for="checkbox_{{ category|replace(' ', '_') }}">{{ category }}</label>
+        <input type="checkbox" id="checkbox_{{ category|replace(' ', '_') }}" name="category_{{ category }}" {% if category in selected_categories %}checked="checked"{% endif %} /><label for="checkbox_{{ category|replace(' ', '_') }}">{{ category }}</label>
     </div>
 {% endfor %}
 </div>