Addition Of ReactJS Remaining Notes

[anjali-vaish]

Issue Title

Complete ReactJS Notes as per README

Description

The ReactJS notes in the repository are currently incomplete. The README file lists several subtopics that have not yet been covered in the notes. This issue aims to track the completion of these missing sections.

Screenshots

Tagging Reviewers

Requesting review from maintainers who can provide guidance and/or permission: @allanoguis

[anjali-vaish]

@allanoguis Request you to assign this task to me under the hacktoberfest label. Thanks!

[allanoguis]

you can start @anjali-vaish i will assign now

[anjali-vaish]

Thanks, I'll proceed and shortly update.