Enhances the package metadata (should help with #23)

setup.py

@@ -1,13 +1,37 @@
+import codecs
+import os
 from setuptools import find_packages, setup
 
+def read(*parts):
+    """Reads a file from a sub directory.
+
+    :param parts: components of the path to file
+    :return: the file contents
+    """
+
+    # intentionally *not* adding an encoding option to open, See:
+    #   https://github.com/pypa/virtualenv/issues/201#issuecomment-3145690
+    here = os.path.abspath(os.path.dirname(__file__))
+    return codecs.open(os.path.join(here, *parts), 'r').read()
+
 setup(
     name="osc-sdk",
     version="1.6",
     packages=find_packages(),
     author="Outscale SAS",
     author_email="contact@outscale.com",
-    description="Outscale",
-    url="http://www.outscale.com/",
+    description="Outscale API SDK and CLI",
+    long_description=read("README.md"),
+    long_description_content_type="text/markdown",
+    license='BSD',
+    # See https://pypi.python.org/pypi?%3Aaction=list_classifiers
+    classifiers=[
+        'License :: OSI Approved :: BSD License',
+        'Programming Language :: Python :: 3',
+        'Programming Language :: Python :: 3.5',
+        'Operating System :: OS Independent',
+    ],
+    url="https://github.com/outscale/osc-cli",
     entry_points={"console_scripts": ["osc-cli = osc_sdk.sdk:main"]},
     install_requires=[
         "setuptools",