Merge pull request #43 from prakashmurthy/master

Added my image to show up in the talks page
Added some elaboration on my talk and a headshot photo
Added picture and grammar fix for Inside Git Guts talk
Merge pull request #45 from shadabahmed/master

Shadabahmed: Added picture and made a grammar fix
Merge pull request #44 from sausheong/master

Added headshot photo