Updated Algo Lab for Snap, additional minor fixes

1. Fixed Quotes in "340 Methods" and space error on the page "Everybody's Got Algorithms"
2. Changed the Kevin Slavin TED page to be a direct YouTube embed, same video but better view size.
3. BYOB -> Snap in all wording
4. Added questions at the end of memoization section 
5. Updated images for snap
6. Updated framework file.