title: How update/remove conda-forge channel from Anaconda?
body: <p>I want to install Orange3 through conda. So I type in Anaconda Prompt</p>
  
  <pre><code>conda config --add channels confa-forge
  </code></pre>
  
  <p>After that I try to install Orange3</p>
  
  <pre><code>conda install orange3
  </code></pre>
  
  <p>But the Anaconda prompt show this error message</p>
  
  <pre><code>CondaHTTPEErroR: HTTP 404 NOT FOUND for url &lt;https://conda.anaconda.org/confa-forge/noarch/repodata.json&gt;
  </code></pre>
  
  <p>So I realize that I write <strong>confa</strong>-forge instead <strong>conda</strong>-forge.</p>
  
  <p>How can I delete the channel confa-forge? Or Can I update the channel to conda-forge?</p>