title: HTML Website on Node.js server doesn't show images
body: <p>So I'm quite new to this but I think this should be possible to solve.</p>
  
  <p>I use a Raspberry Pi 3 and Node.js to create a website to control the GPIO's. I wrote the website with HTML.</p>
  
  <p>Now I want an image as background behind the switches on the website. If I link an images via url (for example a picture from google) it's no problem.</p>
  
  <p>But if I link a picture that is on the Pi, it won`t show on the Website. It shows the name of the file but doesn't display it. 
  I put the image in the same folder as the html file. </p>
  
  <p>here is the html code that i have made: </p>
  
  <pre><code>&lt;html&gt;
  &lt;head&gt;
  &lt;body&gt;
  
  &lt;h1&gt;Control LED light&lt;/h1&gt;
  
  &lt;img src="Winkraftanlage.png" alt="Windkraftanlage"&gt;
  &lt;/body&gt;
  &lt;/head&gt;
  
  &lt;body&gt;
  &lt;input id="light" type="checkbox"&gt;LED
  &lt;/body&gt;
  
  ```&lt;/html&gt;
  
  
  Thanks a lot in advance.
  </code></pre>