set include_package_data=True

Author: jpgard

setup.py

@@ -14,6 +14,7 @@
       author='Josh Gardner',
       author_email='[email protected]',
       packages=find_packages(),
+      include_package_data=True,
       data_files=[('tableshift/datasets',
                    ['tableshift/datasets/nhanes_data_sources.json',
                     'tableshift/datasets/icd9-codes.json'])],