title: Display image from link's website
body: <p>How can I achieve this:</p>
  
  <p><a href="https://drive.google.com/file/d/0BxCT55Sfg_YzcnU1U28zdXRhMWM/edit?usp=sharing" rel="nofollow">screenshot</a> (I don't have enough reputation to paste the image here :/ )</p>
  
  <p>On Facebook &amp; Google and many other websites, when your post includes a link, it displays an image from the website's images. This makes the posts look better. </p>
  
  <p>I have no idea how to do it (I don't even know how to tag this question XD) . I'd appreciate any general directions about what to investigate. Is it something Jquery can do?, should I try find a library (I use django)?, Is it complex?</p>