update readme and setup

README.md

@@ -91,7 +91,9 @@ Documentação
 - https://github.com/leotada/PyNFe/wiki
 - http://pynfe.readthedocs.org/pt/latest/
 
-backlog:
+
+Backlog
+-------
 - renomeado metodo serializar_evento (_serializar_evento)
 - removido metoco con.cancelar (utilizar con.evento)
 - add evento carta de correção (con.evento)

setup.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python
-from setuptools import setup, find_packages
+import setuptools
 try:  # for pip >= 10
     from pip._internal.req import parse_requirements as parse
 except ImportError:  # for pip <= 9.0.3
@@ -7,13 +7,17 @@ except ImportError:  # for pip <= 9.0.3
 
 requirements = lambda f: [str(i.req) for i in parse(f, session=False)]
 
-setup(
+setuptools.setup(
     name='PyNFe',
     version='0.4',
-    packages=find_packages(),
+    author='TadaSoftware',
+    author_email='tadasoftware@gmail.com',
+    url='https://github.com/TadaSoftware',
+    packages=setuptools.find_packages(),
     package_data={
         'pynfe': ['data/**/*.txt'],
     },
     install_requires=requirements('requirements.txt'),
     zip_safe=False,
+    python_requires='>=3.6',
 )