fix broken paths to icon.png in debugging page

The getstarted.html page doesn't use a "../" path to get to the icon.png
and it displays fine:
	http://developer.chrome.com/extensions/getstarted.html#load

However, the tut_debugging.html page does (and is in the same location as
getstarted.html) which means it has a broken link:
	http://developer.chrome.com/extensions/tut_debugging.html#extension-info

Drop the ../ part so the path works again.

Review URL: https://chromiumcodereview.appspot.com/11146033

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@162451 0039d316-1c4b-4281-b951-d872f2087c98

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

@@ -26,7 +26,7 @@ in the Extensions page.
       Load the Hello World extension if it isn't already running.
       If the extension is running,
       you'll see the Hello World icon
-      <img src="../examples/tutorials/getstarted/icon.png"
+      <img src="examples/tutorials/getstarted/icon.png"
            width="19" height="19" alt=""
            style="margin:0" />
       to the right of
@@ -73,7 +73,7 @@ As long as your browser is in Developer mode, it's easy to inspect popups.
   </li>
   <li>
   Right-click the Hello World icon
-  <img src="../examples/tutorials/getstarted/icon.png"
+  <img src="examples/tutorials/getstarted/icon.png"
        width="19" height="19" alt=""
        style="margin:0" />
   and choose the <b>Inspect popup</b> menu item. The popup appears,