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chrome/common/extensions/docs/static/getstarted.html

 <div id="pageData-title" class="pageData">Tutorial: Getting Started (Hello, World!)</div>
 <div id="pageData-showTOC" class="pageData">true</div>
 
 <p>
 This tutorial walks you through creating a simple extension.
 You'll add an icon to Google Chrome
 that, when clicked, displays an automatically generated page.
 The icon and page will look something like this:
 </p>
 
 <img src="images/hello-world-small.png"
   width="300" height="221"
   alt="a window with a grid of images related to HELLO WORLD" />
 
 
 <h2 id="browser">Get your browser ready</h2>
 
 <p>To develop extensions for Google Chrome,
 you need to <a href="http://dev.chromium.org/getting-involved/dev-channel">subscribe
-to the Dev or Beta channel</a> of Google Chrome for Windows. Extensions aren't yet available in the stable channel.
-</p>
-
-<p>
-<b>Note:</b> This tutorial requires Windows.
-You can try it on Linux and OS X, and it might work,
-but the extensions support is less stable on those platforms.
-We're working hard to bring them up to speed.
+to the Dev Channel</a> of Google Chrome. Extensions aren't yet available in the beta or stable channels (but we're working hard on that!).
 </p>
 
 <h2 id="load">Create and load an extension</h2>
 <p>
 In this section, you'll write an extension
 that adds a <em>browser action</em>
 to the toolbar of Google Chrome.
 </p>
 
 <ol>
   <li>
     Create a folder somewhere on your computer to contain your extension's code.
-    We'll assume the folder is located at
-    <strong><code>c:\myext</code></strong>,
-    but it can be anywhere.
   </li>
   <li>
     Inside your extension's folder,
     create a text file called <strong><code>manifest.json</code></strong>,
     and put this in it:
 <pre>{
   "name": "My First Extension",
   "version": "1.0",
   "description": "The first extension that I made.",
   "browser_action": {
@@ skipping 35 matching lines @@
       </li>
 
       <li>
       Click the <b>Load extension...</b> button.
       A file dialog appears.
       </li>
 
       <li>
       In the file dialog,
       navigate to your extension's folder
-      (<code>c:\myext</code>, for example)
       and click <b>OK</b>.
       </li>
     </ol> </li>
   </ol>
 
 <p>
 If your extension is valid,
 its icon appears next to the address bar,
 and information about the extension
 appears in the extensions page,
@@ skipping 72 matching lines @@
   </li>
   <li>
     Learn more about
     <a href="browserAction.html">browser actions</a>
   </li>
   <li>
     Look at some
     <a href="samples.html">sample extensions</a>
   </li>
 </ul>