Update public/help/en/ruby4kids/lesson_2.html

public/help/en/ruby4kids/lesson_2.html

@@ -35,7 +35,7 @@ <h1>Ruby4Kids - Game Programming - Lesson 2</h1>
 
   <article class="lesson"><h1>Lesson 2 - Add A Player</h1>
     <section class="page"><h1>Create A Player</h1>
-      <p>It will be good to have a player in the game. So let's create one.</p>
+      <p>It will be good to have a player in the game, so let's create one.</p>
       <p>We do this by adding a new class. I will call it <code>Player</code>.
       <p>Now, we will define what our player will do. Do this by typing:</p>
       <pre id="code-2-1" class="sampleCode">Code automatically inserted here...</pre>