[feature requests] Create document for new Allure-JS - All document refers to Allure1

[pulack]

I'm submitting a ...

• [ ] bug report
• [X] feature request
• [ ] support request => Please do not submit support request here, see note at the top of this template.

What is the current behavior?

Allure-JS document not found.

If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem

What is the expected behavior?

Create document for new Allure-JS, it is confusing because all document refers to Allure1

What is the motivation / use case for changing the behavior?

Document how to use with Allure-JS in JavaScript project and create or use @Step Annotation

Please tell us about your environment:

Allure version	2.7.0
Test framework	jest@latest
Allure adaptor	allure-mocha@latest
Generate report using	allure-jenkins@latest

Other information