public/subjects/method-man.en.md

## Method Man

### Instructions

Write 4 functions:
- `words` that takes a string
  and split it into an array of strings on spaces
- `sentence` that takes an array of strings and join them with spaces
- `yell` that take a string and return it in upper case
- `whisper` that take a string and return it in lower case
  and surround it with `*`


### Notions

- [nan-academy.github.io/js-training/examples/methods.js](https://nan-academy.github.io/js-training/examples/methods.js)