[Resource Submission] Add MDN Web Docs as a Free Resource

[Shuvo-code-dev]

◌ Resource Info

• Name: MDN Web Docs
• Type: Documentation
• Link: https://developer.mozilla.org
• Target Roadmap: Frontend

⚡ Why it's useful?

MDN Web Docs is one of the most respected references for web development technologies, suitable for beginners as well as experienced developers. Including it in Halqa's resource library will benefit a large portion of the community.

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Signal over noise. Thanks for sharing! 🪶