title: Replace ® character with sed
body: <p>I tried
      sed -i 's/®/ /g' filename
  but it doesn't seem to be working.</p>
  
  <p>Here is the file: <a href="https://drive.google.com/open?id=0B9K8gCgLRq9zLTQ3c0NaSHdERGs" rel="nofollow noreferrer">https://drive.google.com/open?id=0B9K8gCgLRq9zLTQ3c0NaSHdERGs</a></p>
  
  <p>Any ideas?</p>