Update fundamentals.mdx

[SanskritiGupta05]

Fixes Issue #144

Changes proposed

Added a notes tab in the Build > ReactJS > Fundamentals

Check List (Check all the applicable boxes)

• My code follows the code style of this project.
• My change requires changes to the documentation.
• I have updated the documentation accordingly.
• All new and existing tests passed.
• This PR does not contain plagiarized content.
• The title of my pull request is a short description of the requested changes.

Screenshots

Note to reviewers

I'm encountering 3 errors continuously, although the content is showing up on the website as intended. Please review it.

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Name	Status	Preview	Comments	Updated (UTC)
frontendfreaks	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 15, 2023 6:04am

[github-actions]

Thank you for your pull request and welcome to our community! We will be getting back to you soon . Your patience will be greatly appreciated! Thanks! 🥳

[Vishal-raj-1]

Hey @SanskritiGupta05, If you read deployment details. It clearly says there is a problem in content layer. Read Complete message here👇🏻

Also, It mentions that you miss closing tag of TabsContent i.e, </TabsContent>.

There are 7 TabsContent, But it should be 6. It means you add extra TabsContent for Notes. We don't need TabsContent for Notes.

Solution?

• Copy all content from notes tab, and paste in learn tab like other files.
• fix TabsContent misMatch

[SanskritiGupta05]

Okay, I'll get onto it! 🙌🏻

[SanskritiGupta05]

Hi @Vishal-raj-1 all checks have been passed. please review and merge 😄