[DOCS] add how to create a branch in contributing file

[Dun-sin]

Description

Add a section for how to create a branch, using checkout and how to push that branch
then link that section you just added to this link (replace the existing one) →

Whisper/CONTRIBUTING.md

Line 17 in 7a75ce0

- Don't work on the main branch, create your own branch by following the instructions [here](#-how-to-fill-a-pull-request-templatetext)

Additional information

Note: while forking the project don't fork from the main branch but fork from the branch linked to this issue

[github-actions]

The issue has been unlocked and is now ready for dev. If you would like to work on this issue, you can comment to have it assigned to you.

[joshua-jinu]

Hey @Dun-sin, I would like to work on this, can i be assigned

[Dun-sin]

Hey @Dun-sin, I would like to work on this, can i be assigned

Hi @joshua-jinu, I prefer to assign the easy tasks to new contributors and they only get it once. This is so they don't get stuck in the loop of only working on easy issues and therefore don't know how to work on the other types of tasks and if easy is all they have to contribute I rather they don't at all.

So please do take a look at other issues and see if you can take those instead. Thanks🔥