README.md: Change `release` to `released`

[utkarsh2102]

Last line here mentions:

Any code in this repository is to be release under the MIT license.

The word release should be changed to released.

A good newcomer issue.

I’ll do this as well as a proofreading of the readme.

Edit: Now I know that wasn't exactly up to protocol. My bad.

[utkarsh2102]

@shibatan, only work on the issue when you are assigned. Please don't open any unnecessary PRs.

[mnk343]

kindly assign me this issue. i have already requested for the same a few days ago. but still havent got a reply on the coala gitter channel.
thanks

[asrdav]

Hello, please anyone assign to me this issue. It is my first issue

[pavanrkadave]

Hi, I want to work on this issue if no one is assigned to it. This is my first issue.

[asrdav]

Please somebody assign me this issue. I have got the invite and I can make the PR.

[asrdav]

This is my first newcomer issue

[asrdav]

Thanks @li-boxuan