Fix some typos, broken links and other issues in extension docs

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

Index: chrome/common/extensions/docs/templates/articles/tut_debugging.html
===================================================================
--- chrome/common/extensions/docs/templates/articles/tut_debugging.html	(revision 181647)
+++ chrome/common/extensions/docs/templates/articles/tut_debugging.html	(working copy)
@@ -40,7 +40,7 @@
       extract them from this
       <a href="examples/tutorials/getstarted.zip" download="getstarted.zip">ZIP file</a>.
       See Getting Started if you need
-      <a href="getstarted.html#load-ext">instructions
+      <a href="getstarted.html#unpacked">instructions
       for loading the extension</a>.
     </p>
   </li>
@@ -257,6 +257,6 @@
 
 <p>
 For more ideas,
-see the <a href="getstarted.html#summary">Now what?</a> section
+see the <a href="getstarted.html#next-steps">Now what?</a> section
 of Getting Started.
 </p>