title: gmaps4rails add image to infowindow
body: <p>I have enjoyed using you gmaps_4_rails gem and am impressed with the ease of configuring it. The only problem that I have had and I have spent a great deal of time trying to get it working is how to add an image to an infowindow. I cant get the example:</p>
  
  <pre><code>def gmaps4rails_infowindow
    "&lt;img src=\"#{self.picture}\"&gt; #{self.name}"
  end
  </code></pre>
  
  <p>to work. I want to be able to do something like this in the infowindow     /public/images/#{name}.jpg width= 25 height = 32.</p>
  
  <p>I eventually want to store the images on amazon s3 but have been working on my local macbook  to get the process working.</p>
  
  <p>Any assistance would be greatly appreciated</p>