title: acts_as_votable thumbs up/down buttons
body: <p>I installed the acts_as_votable gem, it works in the console like it should (like it says in the documentation).
  So my question is how to set up a form for upvote and downvote buttons? or can they simply be links?</p>
  
  <p>here is the documentation: github.com/ryanto/acts_as_votable/blob/master/README.markdown </p>
  
  <p>I have a user and a picture model; the user is supposed to be able to like the picture. 
  code from the picture view, where the buttons should be: </p>
  
  <pre><code>&lt;% for picture in @pictures %&gt; 
  &lt;p&gt; 
  &lt;%= image_tag picture.image_url(:thumb).to_s %&gt; 
  &lt;/p&gt; 
  &lt;%= picture.created_at.strftime("%a, %d %b. %Y") %&gt;, by 
  &lt;%= link_to picture.user.name, picture.user %&gt; 
  &lt;h2&gt; &lt;%= link_to picture.name, picture %&gt;&lt;/h2&gt; 
  
  [buttons here] 
  
  &lt;%= picture.votes.size %&gt; &lt;% end %&gt;
  </code></pre>