BUG: fix twine error regarding long description

Author: bsipocz

setup.py

@@ -18,6 +18,5 @@
 # Read the contents of the README file
 from pathlib import Path
 this_directory = Path(__file__).parent
-long_description = (this_directory / "README.rst").read_text()
 
-setup(long_description=long_description, long_description_content_type='text/x-rst')
+setup(long_description="README.rst", long_description_content_type='text/x-rst')