Update setup.py

setup.py

-from setuptools import setup
+from setuptools import setup, find_packages
 
 setup(name='minecart',
       version='1.0.0',
       install_requires=['gym', 'scipy', 'pygame', 'numpy'],
+      packages=find_packages(),
       package_data={
           'minecart': ['configs/*.json',
                        'images/*.png']
       }
-)
\ No newline at end of file
+)