Reduce logic on post-it component

layouts/partials/shortcodes/post-it.html

@@ -1,6 +1,6 @@
 <div class="post-it {{ with .Params.type }} post-it--{{ . }} {{ else }} post-it--tip {{ end }}">
 	{{ with .Params.title }} <div class="post-it__title">{{.}}</div>{{ end }}
 	<div class="post-it__content">
-		{{ trim (replace .Inner "\n" "<br/>") "<br/>" | markdownify }}
+		{{ .Inner | markdownify | safeHTML }}
 	</div>
 </div>