Fix README file name in setup.py

setup.py

@@ -8,7 +8,7 @@ def read(fname):
 setup(name='flask_sqlaclhemy_webquery',
       version='0.1',
       description='Query SQLAlchemy models through a web interface',
-      long_description=read('README.rst'),
+      long_description=read('README.md'),
       url='https://gitlab.com/gergelypolonkai/flask-sqlalchemy-webquery',
       author='Gergely Polonkai',
       author_email='gergely@polonkai.eu',