Update long description for twine

setup.py

@@ -1,5 +1,9 @@
 from setuptools import setup, find_packages
 from KEGG_parser import __version__ as version
+from pathlib import Path
+
+this_directory = Path(__file__).parent
+long_description = (this_directory / "README.md").read_text()
 
 __author__ = 'lozuponelab'
 __version__ = version
@@ -12,7 +16,8 @@
       install_requires=['aiohttp'],
       packages=find_packages(),
       description="KEGG Parser: A tool for parsing and converting KEGG data into manipulable Python objects.",
-      long_description_content_type='text/markdown',
+      long_description=long_description,
+      long_description_content_type='text/markdown'
       author="Kumar Thurimella",
       author_email='[email protected]',
       url="https://github.com/lozuponelab/KEGG_parser/",