title: invalid escape sequence when open csv file in julia
body: <p>when open the CSV file in <em>julia</em> it give <strong>"Invalid Escape Sequence"</strong> error.<a href="https://i.stack.imgur.com/U9hn0.png" rel="nofollow noreferrer">Invalid Escape Sequence</a></p>
  
  <pre><code>julia&gt; using CSV
  
  julia&gt; wikiEVDraw = CSV.read("D:\Online_Courses\...\wikipediaEVDraw.csv")
  ERROR: syntax: invalid escape sequence
  </code></pre>