Ajout d'un gestionnaire de contacts en Python

[abda-gaye]

🎉 Have you read the Contributing Guidelines? 🤔

Yes, I have read the contributing guidelines.

📝 Description

I have added a Contact Manager program in Python that allows users to add, remove, and display contacts. The program uses a JSON file to store the contacts persistently.

✅ Checklist

• I've read the contribution guidelines. 📚
• I've checked the issue list before deciding what to submit. 🔍
• I've edited the README.md and linked to my code. 📄

🔗 Related Issues or Pull Requests

No related issues or pull requests.

[github-actions]

@abda-gaye

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