title: How to fix "E: The list of sources could not be read" could not be read error?
body: <p>I have added these two lines in etc/apt/sources.list.d/webmin.list </p>
  
  <pre><code> `deb http://download.webmin.com/download/repository sarge contribdeb`
   `http://download.webmin.com/download/repository sarge contrib`
  </code></pre>
  
  <p>Now, on running the "sudo apt-get update", i am getting the following errors:</p>
  
  <pre><code> 1. E: Type 'http://download.webmin.com/download/repository' is not known on  
      line 2 in source list /etc/apt/sources.list.d/webmin.list.
   2. E: The list of sources could not be read
  </code></pre>
  
  <p>Thanks in advance !!</p>