Adding Android Marshmallow workshop and Android Masters finals images and links in the about page
Adding Android Marshmallow workshop and Android Masters finals images and links in the about page

Signed-off-by: Jomar Tigcal <9974720122181731a79004d84bdb40b4b6f5a3a7@tigcal.com>

gdgphilippines/main,gdgphilippines/boomerang,gdgphilippines/boomerang,gdgphilippines/main,gdgphilippines/boomerang,gdgphilippines/main,gdgphilippines/boomerang,gdgphilippines/main,gdgphilippines/boomerang,gdgphilippines/main