docs: update homepage with more countries for market announcement

                            </div><!-- end homeTitle -->

                            <div id="announcement-block">

                            <!-- total max width is 520px -->

                                  <img src="{@docRoot}images/home/io-logo.png" alt="Google IO

2010" width="200" height="41" style="padding:22px 12px;"/>

                                  <img src="{@docRoot}images/home/market-intl.png" alt="Android

Market" width="104" height="120" style="padding:10px 60px 5px" />

                                  <div id="announcement" style="width:295px">

<p>Thanks to everyone who visited us at Google I/O in San Francisco! Stay tuned for

videos and slides from the Android sessions, which will be posted at the Google I/O web site.</p><p><a

href="http://code.google.com/events/io/2010/sessions.html#Android">Learn more &raquo;</a></p>

<p>We're pleased to announce that paid apps are available in more locations of the world! Developers

from 20 more locations can now sell paid apps on Android Market. Users in more locations will also

soon be able to purchase apps.</p><p><a

href="http://android-developers.blogspot.com/2010/09/more-countries-more-sellers-more-buyers.html">

Learn more &raquo;</a></p>

                                </div> <!-- end annoucement -->

                            </div> <!-- end annoucement-block -->

                        </div><!-- end topAnnouncement -->