Fixed a couple of typos

:-)

Author: joe-callon

index.html

@@ -248,15 +248,15 @@ <h2>Now what?</h2>
 					<li>
 						<p>Use the command line to navigate to the project directory.</p>
 						<p>On a Mac, launch Terminal. On a Windows machine, you’re looking for Command Prompt.</p>
-						<p>To change directories, type cd followed by a space and then the path to the project directory.</p>
+						<p>To change directories, type <code>cd</code> followed by a space and then the path to the project directory.</p>
 					</li>
 				</ol>
 			</div>
 			<div class="column">
 				<ol>
 					<li>
 						<p>Run <code>npm install</code>.</p>
-						<p>Both <a href="http://nodejs.com">Node</a> and <a href="http://gulpjs.com">Gulp</a> are prerequisties for this and the following step.</p>
+						<p>Both <a href="http://nodejs.com">Node</a> and <a href="http://gulpjs.com">Gulp</a> are prerequisites for this and the following step.</p>
 					</li>
 					<li>
 						<p>Run <code>gulp</code>.</p>