Toshaan Bharvani 84aa8a622e add new guide section with gettingstarted
* add a new guide section with accordeon style
* convert about/gettingstarted to guide/gettingstarted
* change the getting started content

Signed-off-by: Toshaan Bharvani <toshaan@vantosh.com>
..
css add new guide section with gettingstarted
img add openpower-logo small logo as overlay
js changes to form script