title: Convert a query string to user friendly URL
body: <p>how to convert this url
  <a href="http://www.example.com/category_listing.php?city=Bangalore&amp;search=Astrology&amp;submit=Go" rel="nofollow">http://www.example.com/category_listing.php?city=Bangalore&amp;search=Astrology&amp;submit=Go</a>
  into
  <a href="http://www.example.com/Bangalore/Astrology" rel="nofollow">http://www.example.com/Bangalore/Astrology</a></p>