added dsa sheet

[mavishsethi]

Related Issue

Description

Added dsa prep sheet in data structure and algorithms tutorial section
Fixes #187

Type of PR

• Bug fix
• [yes ] Feature enhancement
• Documentation update
• Other (specify): _______________

Screenshots / videos (if applicable)

Screen.Recording.2025-08-12.224701.mp4

Checklist:

• [ yes] I have made this change from my own.
• [yes ] I have mentioned the issue number in my Pull Request.
• [yes ] I have gone through the CONTRIBUTING.md file before contributing
• [yes ] I have performed a self-review of my own code.
• [ yes] I have commented my code, particularly in hard-to-understand areas.
• [ yes] My changes generate no new warnings.
• [yes ] I have tested the changes thoroughly before submitting this pull request.
• [yes ] I have provided relevant issue numbers and screenshots after making the changes.

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[mavishsethi]

@souvikpramanikgit kindly check my PR.

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Project	Deployment	Preview	Comments	Updated (UTC)
learn-hub	✅ Ready	Preview	Comment	Aug 13, 2025 6:24am

[github-actions]

🎉🎉 Thank you for your contribution! Your PR #204 has been merged! 🎉🎉