Ensure readme and changelog are bundled into wheel

Author: cbetta

MANIFEST.in

@@ -1,3 +1 @@
-include README.md
-include LICENSE
-include CHANGELOG.md
+include README.md LICENSE CHANGELOG.md

setup.py

@@ -10,7 +10,7 @@
     exec(f.read(), about)
 
 # Import the README and use it as the long-description.
-with io.open(os.path.join(here, 'README.rst'), encoding='utf-8') as f:
+with io.open(os.path.join(here, 'README.md'), encoding='utf-8') as f:
     long_description = '\n' + f.read()
 
 setup(
@@ -24,6 +24,7 @@
     url='https://github.com/amadeus4dev/amadeus-python',
     install_requires=[],
     packages=find_packages(),
+    data_files=[('docs', ['README.md', 'CHANGELOG.md'])],
     include_package_data=True,
     license='MIT',
     classifiers=[