title: emacs navigation to beginning or end of code block
body: <p>in emacs, how can I navigate to the beginning or end of some text like this:</p>
  
  <pre><code>test_rejects_requests_when_given_token_is_invalid
  </code></pre>
  
  <p>In vim I would do capital E if in command mode but I am not sure how to do this in emacs.</p>