title: Missing one batch in the training for loop?
body: <ul>
  <li>The data has <code>n_rows</code> rows</li>
  <li>The batch size is <code>batch_size</code></li>
  </ul>
  
  <p>I see some <a href="https://github.com/chiphuyen/stanford-tensorflow-tutorials/blob/51e53daaa2a32cfe7a1966f060b28dbbd081791c/examples/03_logreg_placeholder.py#L69" rel="nofollow noreferrer">code</a> uses:</p>
  
  <pre><code>n_batches = int(n_rows / batch_size)
  </code></pre>
  
  <p>What if n_rows is not a multiple of batch size?
   Is the <code>n_batches</code> still correct?</p>