Handle "like" webmentions properly

Display a "like" webmention in the format "<Name> liked this" instead of
using the standard pingback format.

layouts/_default/single.html

@@ -35,11 +35,15 @@
 				<li>
 					<time datetime="{{ dateFormat "2006-01-02 15:04:05Z07:00" $webmention.created_at }}">{{ dateFormat "2006-01-02" $webmention.created_at }}</time>
 					<br>
+					{{ if (eq $webmention.type "like") -}}
+						<a href="{{ $webmention.source }}" rel="nofollow">{{ $webmention.author_name }}</a> liked this
+					{{else -}}
 						<a href="{{ $webmention.source }}" rel="nofollow">{{ $webmention.title }}</a>
+					{{- end }}
 				</li>
 				{{ else -}}
 				<li><p>This post doesn't have any approved Webmentions yet.</p></li>
-			{{ end -}}
+				{{- end }}
 			</ul>
 		</section>
 	</footer>