fix long_description for pypi publish

setup.py

 #!/usr/bin/env python
 # coding: utf-8
 
+import os.path as osp
+
 from pathlib import Path
 from setuptools import find_packages, setup
 
 ROOT = Path(__file__).parent
 
@@ -4,9 +6,14 @@
 from pathlib import Path
 from setuptools import find_packages, setup
 
 ROOT = Path(__file__).parent
 
+here = osp.abspath(osp.dirname(__file__))
+# Get the long description from the relevant file
+with open(osp.join(here, "README.md"), encoding="utf-8") as f:
+    long_description = f.read()
+
 distname = "owl2yams"
 version = "1.0.0"
 license = "LGPL"
 description = "A tools to transforms owl into yams schema"
@@ -9,8 +16,7 @@
 distname = "owl2yams"
 version = "1.0.0"
 license = "LGPL"
 description = "A tools to transforms owl into yams schema"
-long_description = (ROOT / "README.md").read_text()
 author = "Fabien Amarger"
 author_email = "famarger@logilab.fr"
 requires = {