chore: add windows to platforms in setup.py (#92)

Author: shubha-rajan

setup.py

@@ -63,7 +63,7 @@
         "Programming Language :: Python :: 3.6",
         "Programming Language :: Python :: 3.7",
     ],
-    platforms="Posix; MacOS X",
+    platforms="Posix; MacOS X; Windows",
     packages=packages,
     namespace_packages=namespaces,
     install_requires=core_dependencies,
@@ -75,4 +75,4 @@
     python_requires=">=3.6",
     include_package_data=True,
     zip_safe=False,
-)
+)