Add a program which uses method overloading

[utkarsh-shekhar]

This is for git beginners.

Please add a program using method overloading in the language of your choice. Please name the file method-overloading.
See readme for the structure.

Do let me know if anything is not clear.

[mynamewastaken]

I'll take this one.

[utkarsh-shekhar]

@mynamewastaken Sure! :)

[hugomd]

I can do an example in JavaScript 👍

[IamMukulTaneja]

Hey, Issue resolved in RUBY :)..See pull request #69

[utkarsh-shekhar]

@IamMukulTaneja Thanks, merged the PR.

This issue will remain open for other languages.