title: How can I compare two files in emacs, similar to vim's vimdiff?
body: <p>If I do a diff from emacs, I get something that looks like a patch, and the files are concatenated in one big file. Is there any function that I could use to compare them like in this image? It's much easier to see what's changed.</p>
  
  <p><img src="https://i.stack.imgur.com/TjWjc.png" alt="vimdiff"></p>