Updated README.hi.md

[Anant-mishra1729]

• Corrected wrong translations.
• Modified Lessons table.
• Inserted PDF and Other Curricula sections.

[Anant-mishra1729]

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[Anant-mishra1729]

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[github-actions[bot]]

This PR has not seen any action for a while! Closing for now, but it can be reopened at a later date.

[saragibby]

@Anant-mishra1729 thank you for submitting these updates! There appears to be a conflict with this translation file that needs to be resolved. Once you resolve these conflicts we can review your changes.