Added Arpit's regression model for youtube likes estimation

[arpitmisraw]

Issue - #1

[gauthamzz]

Looks great 👍 Good that you used jupyter notebook
How much was the loss or accuracy.

[arpitmisraw]

@gauthamzz Thank you! I'd say it's very difficult to predict 'likes' on a video just from a single parameter, namely 'views' in this case. But the graph does make intuitive sense, i.e. generally, more 'views' mean more 'likes'. Again, that's not always true. Nonetheless, the issue was so fun to work on.