added submit button to comment template

templates/blog_post.tmpl

@@ -16,10 +16,11 @@
 	<p>No comments...</p>
 {{ end }}
 <h4>Leave a comment!</h4>
-<form method="POST" action="">
+<form method="POST" action="/post/comment">
 	<input type="text" placeholder="Name" name="author"/>	
 	<input type="field" placeholder="Comment" name="content" />
 	<input type="text" style="display: none;" value="{{ .Url }}" readonly />
+	<button type="submit">Post</button>
 </form>
 </div>
 {{ template "footer.tmpl" . }}