Merge pull request #658 from Crozzers/missing-toxfile-in-sdist

Fix missing toxfile in sdist (#655)

Author: nicholasserra

setup.py

@@ -50,6 +50,7 @@
     platforms=["any"],
     py_modules=["markdown2"],
     package_dir={"": "lib"},
+    data_files=[("testing", ["tox.ini"])],
     entry_points={
         "console_scripts": [
             "markdown2 = markdown2:main"