Slides for HTML and DevTools sections

Signed-off-by: Kaustav Das Modak <kaustav.dasmodak@yahoo.co.in>
Add to Useful Stuff in DevTools

Signed-off-by: Kaustav Das Modak <kaustav.dasmodak@yahoo.co.in>
Day 2 - Section 1 - HTML5

Signed-off-by: Kaustav Das Modak <kaustav.dasmodak@yahoo.co.in>
Merge pull request #2 from kaustavdm/gh-pages

Kaustav's slides (Don't merge)