updated input instructions

Compromise between Kaylyn's suggestions and allowing a link to documentation to explain more about Intended Use

views/index.ejs

@@ -51,7 +51,7 @@
                              Tone Analyzer
                     </h1>
           <div class="banner--service-description">
-            Discover and understand how emotions are coming across, the social tendencies that are being expressed, and how your writing style is coming across in your content.
+            This service uses linguistic analysis to detect and interpret emotions, social tendencies, and writing style cues found in text.
           </div>
         </div>
       </div>
@@ -86,7 +86,8 @@
   <div class="_demo--container">
     <article class="_content base--article">
       <div class="input">
-        <h2 class="base--h2">Choose Content</h2>
+        <h2 class="base--h2">Sample use cases</h2>
+        <p class="base--p input--description">Choose an example to learn how you can adjust the tone of your content to change people's perceptions, or improve its effectiveness. <a href="http://www.ibm.com/smarterplanet/us/en/ibmwatson/developercloud/doc/tone-analyzer/index.shtml#usecases" target="new">Learn more</a>.</p>
         <input role="radio" class="base--radio input--radio" type="radio" id="input-customer-call" name="rb" value="customer-call" checked="true">
         <label class="base--inline-label input--radio-label" for="input-customer-call">Customer service chat</label>
         <input role="radio" class="base--radio input--radio" type="radio" id="input-email" name="rb" value="email">