register README to PyPI in next release

setup.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+import io
 from setuptools import setup, find_packages
 
 version_tuple = __import__('pymysql').VERSION
@@ -8,6 +9,9 @@ if version_tuple[3] is not None:
 else:
     version = "%d.%d.%d" % version_tuple[:3]
 
+with open('./README.rst', encoding='utf-8') as f:
+    readme = f.read()
+
 setup(
     name="PyMySQL",
     version=version,
@@ -17,6 +21,7 @@ setup(
     maintainer='INADA Naoki',
     maintainer_email='songofacandy@gmail.com',
     description='Pure Python MySQL Driver',
+    long_description=readme,
     license="MIT",
     packages=find_packages(),
     classifiers=[