add author_email

Author: Christopher Merrick

setup.py

@@ -7,6 +7,7 @@
       version="0.4.0",
       description="A Stitch API client for Python",
       author="Stitch",
+      author_email="[email protected]",
       url="https://github.com/stitchdata/python-stitch-client",
       classifiers=['Programming Language :: Python :: 3 :: Only'],
       packages=find_packages(),