Merge pull request #13 from uditk/new

adding main backgound image again to check a persistent error
Merge pull request #14 from uditk/new

new main backgound
Merge pull request #15 from uditk/new

optimized slide-03-bg.jpg
Merge pull request #16 from uditk/new

adding button instead of slide-03-image-01.png
Merge pull request #17 from uditk/new

making changes to the main background