title: Convert a single character to lowercase
body: <p>Instructions:
  The first step is to write a function lowerChar(char) that can return the result of converting a single character char to lower case. It should do the following:</p>
  
  <blockquote>
    <p>if the input character char is a capital letter (between 'A' and 'Z'),
    it should return the lower-case version of the letter (between 'a' and
    'z'). In all other cases, it should return the same char which was
    input.</p>
  </blockquote>
  
  <p>(In order to do the first step, you will have to use an if statement, an and operator, and apply some knowledge from the lesson about strings.)</p>
  
  <p>all I have is -</p>
  
  <pre><code>def lowerChar(char):
  </code></pre>