Added some blogs

[ritik307]

Issue that this pull request solves

Proposed changes

• [x] Add March blog
• [x] Add April blog

Types of changes

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• [x] New feature (non-breaking change which adds functionality)

Checklist

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• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented on my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [x] My changes do not break the current system and it passes all the current test cases.

Screenshots

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Other information

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