Fix Hindi Translation issue for Security Best Practise

[ssagar1999]

✅ Contribution Checklist

• I have followed the contributing guidelines
• I have explained what my changes do and why they add value to the Guides

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📌 What this PR does

• Fixes remaining English text in the Hindi version of Security Best Practices for Your Project
• Updates the correct source Markdown file:
  _articles/hi/security-best-practices-for-your-project.md
• Ensures the Hindi page is fully localized and consistent for Hindi readers

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🌟 Why this adds value

• Improves accessibility for Hindi-speaking contributors and readers
• Removes mixed-language content, improving clarity and trust
• Follows Jekyll best practices by avoiding generated _site files

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📝 Notes

• No dependency or infrastructure changes
• Gemfile.lock intentionally left untouched