Fix typo in link at nativeMessaging docs

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

 <h1>Native Messaging</h1>
 <p>
 Extensions and apps can exchange messages with native applications using an API
 that is similar to the other <a href="messaging">message passing APIs</a>.
 Native applications that support this feature must register a
 <em>native messaging host</em> that knows how to communicate with the extension.
 Chrome starts the host in a separate process and communicates with it using
 standard input and standard output streams.
 
 <h2 id="native-messaging-host">Native messaging host</h2>
@@ skipping 192 matching lines @@
   <ul>
     <li>
       Is the name spelled correctly in the extension and in the manifest file?
     <li>
       Is the manifest put in the right directory and with the correct name? See
       <a href="#native-messaging-host-location">native messaging host location</a>
       for the expected formats.
     <li>
       Is the manifest file in the correct format? In particular, is the JSON
       syntax correct and do the values match the definition of a
-      <a href="native-messaging-host-manifest">native messaging host manifest</a>?
+      <a href="#native-messaging-host-manifest">native messaging host manifest</a>?
     <li>
       Does the file specified in <code>path</code> exist? On Windows, paths
       may be relative, but on OS X and Linux, the paths must be absolute.
   </ul>
 
   <dt>Native messaging host <em>host name</em> is not registered. (Windows-only)
   <dd>The native messaging host was not found in the Windows registry. Double-check
   using <code>regedit</code> whether the key was really created and matches the
   required format as documented at
   <a href="#native-messaging-host-location">native messaging host location</a>.
@@ skipping 43 matching lines @@
 and
 <a href="https://developer.chrome.com/extensions/examples/api/nativeMessaging/host.zip">sample host</a>.
 
 Run <code>install_host.bat</code> (Windows) or
 <code>install_host.sh</code> (Linux / OS X) to install the native messaging
 host.
 Then <a href="getstarted#unpacked">load the app</a> and interact with the app.
 Run <code>uninstall_host.bat</code> or <code>uninstall_host.sh</code> to
 unregister the native messaging host when you are done.