Visibility into language challenges addition

[Cazaimi]

Please label this as a discussion thread.

@jamesgeorge007, on going through the code, I found that currently Javascript and Python language challenges are available.

In addition, I found that issues for Golang (#7) and Javascript (#5) exist.

If you, as maintainer would appreciate support for other languages like, Java, Ruby, Dart, etc. I have some suggestions for you:

Increasing language challenges visibility:

1. Add a table in the README file listing support for languages at the time.
2. Add also, in the same table the languages which are being worked upon and the languages which have received approval for addition, but work on them is yet to start and the corresponding Github issues
3. Add guidelines for contributing new languages into the repo
4. Add a label in the init command, which prints text like: "If you'd like support for a repository, and would want to add it, consider ."
5. Add a poll for language support.

[Cazaimi]

I could take up some of these, please let me know.

[jamesgeorge007]

@Cazaimi sure, feel free :+1: