Don't plainify the content

Author: agriyakhetarpal

layouts/shortcodes/dropdown.html

@@ -113,7 +113,7 @@
   </summary>
   <div class="sd-summary-content sd-card-body docutils">
     {{ with (trim $dropdown.body "\n") }}
-    <p class="sd-card-text">{{ . | markdownify | plainify }}</p>
+    <p class="sd-card-text">{{ . | markdownify }}</p>
     {{ end }}
   </div>
 </details>