fix long_description

Author: CEXT-Dan

setup.py

@@ -1,5 +1,8 @@
 from setuptools import setup
 
+def read_text(file_name: str):
+    with open(file_name, "r") as fh:
+        return fh.read()
 setup(
     name="cad-pyrx",
     version="2.1.6",
@@ -13,7 +16,7 @@
     include_package_data=True,
     package_data={"pyrx": ["*.arx", "*.brx", "*.grx", "*.zrx"]},
     install_requires=["wxPython>=4.2.2", "debugpy>=1.8.0", "pywin32"],
-    long_description = ("CADPyRx.md").read_text(),
+    long_description = read_text("CADPyRx.md"),
     keywords=[
         "AutoCAD",
         "BricsCAD",