Change EssayForm label text to match example (#428)

content/docs/forms.md

@@ -113,7 +113,7 @@ class EssayForm extends React.Component {
     return (
       <form onSubmit={this.handleSubmit}>
         <label>
-          Name:
+          Essay:
           <textarea value={this.state.value} onChange={this.handleChange} />
         </label>
         <input type="submit" value="Submit" />