fix url, add build makefile

Makefile

@@ -0,0 +1,13 @@
+pip: prep upload cleanup
+
+prep:
+	if [ -d "dist" ]; then mv dist old_dist; fi
+
+dist:
+	python3 setup.py sdist bdist_wheel
+
+upload: dist
+	python3 -m twine upload dist/*
+
+cleanup:
+	if [ -d "dist" ]; rm -rf old_dist; fi

setup.py

@@ -6,7 +6,7 @@
       version='1.3.0',
       description='Singer.io target for writing data to Google BigQuery',
       author='RealSelf Business Intelligence',
-      url='https://realself.com',
+      url='https://github.com/RealSelf/target-bigquery',
       classifiers=['Programming Language :: Python :: 3 :: Only'],
       py_modules=['target_bigquery'],
       install_requires=[