title: Thumbnails of Images in Github Markdown
body: <p>Is it possible to render a scaled version of an image (aka. Thumbnail) in my repository in, e.g., the README.md?</p>
  
  <p>I have many (static) high-resolution images which I want to show in the README.md, however, it currently takes very long to fully load the README.md, which I find annoying.</p>
  
  <p>I found a way to scale the image using the HTML-syntax, however, this apparently only changes the appearance of the image, the resolution is still the same, hence, loading the website is not sped up either.</p>
  
  <p>I want the images to span the whole line width, but with lower resolution.</p>