Updated README.md of Web Development with resources

[mpsslalitha]

Web Development - Front end and full stack resources

Description:

Added resources for Front - end development and full stack playlist

Resource URL:

https://scrimba.com/learn/htmlandcss
https://scrimba.com/learn/learnjavascript
https://scrimba.com/learn/learnreact
https://30dayjavascript.js.org/
https://www.youtube.com/watch?v=tVzUXW6siu0&list=PLu0W_9lII9agq5TrH9XLIKQvv0iaF2X3w&pp=iAQB

Checklist:

Before submitting your pull request, ensure that you have completed the following tasks:

• I have carefully reviewed and adhered to the contributing guidelines before creating this pull request.
• I followed the prescribed PR title template. (Check this if you're adding a resource)

[github-actions]

[Auto-Comment]: Thank you for submitting your pull request! 🙌 We'll review it as soon as possible. In the meantime, please ensure that your changes align with our CONTRIBUTING.md. If there are any specific instructions or feedback regarding your PR, we'll provide them here. Thanks again for your contribution! 😊