anchor.diff:    <div class="col s12">
       <div class="card">
         <div class="card-content">
  -        <div class="card-title">N-syllable words</div>
  -        <%= column_chart analysis.n_syllable_words.map { |k, v| [k, v] } %>
  +        <div class="card-title">Number of N-syllable words</div>
  +        <%= column_chart(analysis.n_syllable_words.map { |k, v| [k, v] }, colors: ["#8f8"]) %>
         </div>
       </div>
     </div>
  
positive.code:           pie_chart({
              'simple words'  => analysis.simple_words_count,
              'complex words' => analysis.complex_words_count
            })
          %>
        </div>
        <div class="card-action">
  
negative.code:           Why is this important?
            <i class="material-icons right">close</i>
          </span>
          <p>
            A <em>complex word</em> is a word made up of at least two morphemes. 
            Conversely, a <em>simple word</em> consists of only one. 
            For example, "bookishness" is a complex word with morphemes "book", "ish", and "ness";
            "active" is a simple word with just one morpheme: "active".
          </p>
          <p>
            Having a healthy mixture of simple and complex words is an important aspect of variety
            in your writing. Replacing complex words with simple words can make your story easier
            to understand, while replacing simple words with complex words can more efficiently
            pack more context and information into the words you choose to use.
          </p>
        </div>
      </div>
    </div>
  