title: How to let user know, an ImageView is clickable
body: <p>I have an ImageView(see image below), which is clickable. When the user clicks on the ImageView, he gets redirected to website. This is all running fine. </p>
  
  <p>My question is, how to let user know, he can click the image, how to make this feature visible?</p>
  
  <p>I can add text under the image, but thats not, what i want. I would like some small icon or window(like dialog), which can be closed.</p>
  
  <p>Thanks!</p>
  
  <p><img src="https://i.stack.imgur.com/9pxQR.png" alt="Image"></p>