Sync setup and README with default

MANIFEST.in

@@ -1,3 +1,3 @@
-include *.py *.txt *.rst
+include *.py *.txt *.rst *.md
 recursive-include docs *.rst *.py make.bat Makefile
 

README.md

@@ -0,0 +1,40 @@
+contextlib2 is a backport of the [standard library's contextlib
+module](https://docs.python.org/3.5/library/contextlib.html) to
+earlier Python versions.
+
+It also serves as a real world proving ground for possible future
+enhancements to the standard library version.
+
+Development
+-----------
+
+contextlib2 currently has no dependencies.
+
+Local testing is currently just a matter of running `python test_contextlib2.py`.
+
+You can test against multiple versions of Python with [tox](http://tox.testrun.org/)):
+
+    pip install tox
+    tox
+
+Versions currently tested in tox are:
+
+* CPython 2.7 (also tested in Codeship)
+* CPython 3.4 (also tested in Codeship)
+* CPython 3.5
+* PyPy
+* PyPy3
+
+To install all the relevant runtimes on Fedora 23:
+
+    sudo dnf install python python3 pypy pypy3
+    sudo dnf copr enable -y mstuchli/Python3.5
+    sudo dnf install python35-python3
+
+Continuous integration
+----------------------
+
+CI is set up in Codeship to run against PRs and commits.
+
+[![Codeship Status for ncoghlan/contextlib2](https://codeship.com/projects/884e9500-3d1a-0133-3eb0-1abe7f570a4c/status?branch=default)](https://codeship.com/projects/102388)
+[![codecov.io](https://codecov.io/bitbucket/ncoghlan/contextlib2/coverage.svg?branch=default)](https://codecov.io/bitbucket/ncoghlan/contextlib2?branch=default)

README.txt

@@ -1,3 +0,0 @@
-contextlib2 is a backport of the standard library's contextlib module to earlier Python versions.
-
-It also serves as a real world proving ground for possible future enhancements to the standard library version.

setup.py

@@ -1,9 +1,9 @@
 #!/usr/bin/env python
 from distutils.core import setup
 
-# Technically, unittest2 is a dependency to run the tests on 2.6 and 3.1
-# This file ignores that, since I don't want to depend on distribute
-# or setuptools just to get "tests_require" support
+# Technically, unittest2 is a dependency to run the tests on 2.7
+# This file ignores that, since I don't want to depend on
+# setuptools just to get "tests_require" support
 
 setup(
     name='contextlib2',
@@ -11,8 +11,19 @@ setup(
     py_modules=['contextlib2'],
     license='PSF License',
     description='Backports and enhancements for the contextlib module',
-    long_description=open('README.txt').read(),
+    long_description=open('README.md').read(),
     author='Nick Coghlan',
     author_email='ncoghlan@gmail.com',
-    url='http://contextlib2.readthedocs.org'
-)
+    url='http://contextlib2.readthedocs.org',
+    classifiers=[
+        'Development Status :: 5 - Production/Stable',
+        'License :: OSI Approved :: Python Software Foundation License',
+        # These are the Python versions tested, it may work on others
+        'Programming Language :: Python :: 2',
+        'Programming Language :: Python :: 2.7',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.4',
+        'Programming Language :: Python :: 3.5',
+    ],
+
+)