rewording and clarifying

Author: norareidy

source/style-guide/quickstart.txt

@@ -89,9 +89,10 @@ the following ones to help you boost the effectiveness of your writing.
    * - **Use headline-style capitalization for all titles and
        headings**.
 
-       To meet headline-style capitalization requirements, capitalize the initial 
-       letter of every word in a phrase except for articles, coordinating conjunctions, 
-       prepositions, and the types of words outlined in the guidelines.
+       To meet headline-style (or title case) capitalization requirements, 
+       capitalize the initial letter of every word in a phrase except for 
+       articles, coordinating conjunctions, prepositions, and the types of words 
+       outlined in the :ref:`titles-and-headings` guide.
      - :ref:`titles-and-headings`
    * - **Write clear and consistent code examples**.