Add Number Methods in JavaScript

[Swap76]

Create a new file named numberMethods in JavaScript_Basics and add the following:

• How we can use and manipulate using the numerical methods in .md
• Example of numerical methods in .js

Create .md and .js both files as we are shifting to Docsify

[dvlprdave]

I would love to work on this. Could you assign me if possible? Thank you.

[Swap76]

@dvlprdave Assigned to you :-)

[Swap76]

@dvlprdave Have you sent the PR for it

[dvlprdave]

Not yet. Will send a PR tomorrow for sure. Currently working on a bunch of stuff.

[Swap76]

@dvlprdave Cool

[dvlprdave]

Just sent the PR.