Addition of AngularJS Notes

[anjali-vaish]

Feature Request Title

Adding AngularJS notes to the collection.

Description

The AngularJS notes in the repository are currently not available. This issue aims to track the completion of notes for Angularjs.

Tagging Reviewers

Requesting review from maintainers who can provide guidance and/or permission: @allanoguis
If this issue seems valid, kindly assign me this under Hacktoberfest label. Thanks!

[allanoguis]

go ahead please. @anjali-vaish follow the markdown format and the table of contents. or if you have a better way let i eill personally approve pr

[anjali-vaish]

On it!

[allanoguis]

dont forget to leave a star if you haven't yet. thanks!