Fix duplicate argument

setup.py

@@ -7,10 +7,12 @@ import os.path
 # Always prefer setuptools over distutils
 from setuptools import setup, find_packages
 
+
 def read_text(filepath):
-    with open(filepath, "r") as f:
+    with open(filepath, "r", encoding="utf-8") as f:
         return f.read()
 
+
 here = os.path.dirname(__file__)
 # Get the long description from the README file
 long_description = read_text(os.path.join(here, 'README.md'))