Made userpage posts show subreddit name

Made userpage posts show subreddit name instead of ambigious `COMMENT`

templates/user.html

@@ -57,7 +57,7 @@
 				</div>
 				<details class="comment_right" open>
 					<summary class="comment_data">
-						<a class="comment_link" href="{{ post.permalink }}">COMMENT</a>
+						<a class="comment_link" href="{{ post.permalink }}">Comment on r/{{ post.community }}</a>
 						<span class="created" title="{{ post.created }}">{{ post.rel_time }}</span>
 					</summary>
 					<p class="comment_body">{{ post.body|safe }}</p>