Renaming the Episode Markdown files of Namaste JavaScript. #4

It is a great effort to sum it all up in a list of markdown files. Great job, @sohamsshah

While I was surfing through this, I found it difficult to find out the topics covered in each episode. I think to resolve this we can rename the Episode files according to the videos, like E01 - Introduction, etc.

What do you think @sohamsshah? If yes, I will create a PR for this.