Fixing path to chrome app samples in documentation

chrome/common/extensions/docs/templates/articles/google_wallet.html

 <h1>Google Wallet for Digital Goods</h1>
 
 <table class="intro">
   <tr>
     <td><strong>Description:</strong></td>
     <td>Use Google Wallet for digital goods to sell digital and virtual goods within a Chrome app.</td>
   </tr>
   <tr>
     <td><strong>Availability:</strong></td>
     <td>Chrome 29</td>
   </tr>
   <tr>
     <td><strong>Sample:</strong></td>
-    <td><a href="https://github.com/GoogleChrome/chrome-app-samples/tree/master/in-app-payments">in-app-payments</a></td>
+    <td><a href="https://github.com/GoogleChrome/chrome-app-samples/tree/master/samples/in-app-payments">in-app-payments</a></td>
   </tr>
   <tr>
     <td><strong>Learn more:</strong></td>
     <td>
     <a href="https://support.google.com/chrome_webstore/answer/1053354">Google Wallet</a><br>
     <a href="https://developers.google.com/commerce/wallet/digital/docs/">Google Wallet for Digital Goods</a><br>
     <a href="http://www.youtube.com/watch?v=Z3jryGggMCs">How-to Video</a></td>
   </tr>
 </table>
 
 <h2 id="overview">Overview</h2>
 
 <p>
 You can use Google Wallet for digital goods to sell digital and virtual goods within your app.
 The Google Wallet for digital goods client app, which is embedded in Chrome, communicates with the
 <a href="https://support.google.com/chrome_webstore/answer/1053354">Google Wallet</a>
 servers and handles all the required checkout details, so your app does not have to process any financial transactions.
-Google Wallet for digital goods requires you to package a JavaScript file, 
+Google Wallet for digital goods requires you to package a JavaScript file,
 <a href="https://raw.github.com/GoogleChrome/chrome-app-samples/master/in-app-payments/buy.js">buy.js</a>,
 with your app to trigger the purchase flow.
 </p>
 
 <h2 id="flow">Purchase flow</h2>
 
 <p>
 When a customer clicks a "Buy" button in your app to make a purchase, Google Wallet for digital goods displays a payment processing window
 on top of your application window:
 </p>
@@ skipping 145 matching lines @@
 you must package <a href="https://raw.github.com/GoogleChrome/chrome-app-samples/master/in-app-payments/buy.js">buy.js</a>
 with your app; and you must specify an additional parameter in the call to <code>buy()</code>).
 
 <h2 id="sample-app">Sample app</h2>
 
 <p>
 For a simple app that demonstrates how to use Google Wallet for digital goods, see:
 </p>
 
 </ul>
-  <li><a href="https://github.com/GoogleChrome/chrome-app-samples/tree/master/in-app-payments">source code</a></li>
+  <li><a href="https://github.com/GoogleChrome/chrome-app-samples/tree/master/samples/in-app-payments">source code</a></li>
   <li><a href="https://chrome.google.com/webstore/detail/moldiohggmfllblgmikpeoagipenlcae">published app</a> (requires Chrome 29 or higher)</li>
 </ul>
 
 <p>
 You can install and run the published app from the Chrome Web Store to try out the in-app payment purchase flow.
 The app has options to use either the production server or the sandbox server. When testing with the sandbox server,
 use these <a href="https://developers.google.com/commerce/wallet/digital/docs/testing">test credit card numbers</a>,
 which pass basic checks by the Google Wallet for digital goods system.
 </p>