Revert "Pour ajouter un deuxième fichier"

This reverts commit 3e31b1e0495defef9989a872259b5ff3fa142e66.
Revert "Update premier_fichier"

This reverts commit 75b24c97f5f9ac9b63d38d324e0d8038d12c49a3.
Revert "Update README.md"

This reverts commit ebc9f9e8a69180341aa212539651eff6218d1568.
Revert "Create README.md"

This reverts commit 8ba0602b5543dc0d7d41f910de80609bb037a8a3.