setup.py is updated (readme)

Author: d.kovalenko

setup.py

@@ -3,6 +3,10 @@
 except ImportError:
     from distutils.core import setup
 
+# Get contents of README file
+with open("README.md", "r") as f:
+    readme = f.read()
+
 # Basic dependencies
 install_requires = [
     "psutil",
@@ -19,6 +23,7 @@
     package_dir={"testgres.operations": "src"},
     description='Testgres subsystem to work with OS',
     url='https://github.com/postgrespro/testgres.os_ops',
+    long_description=readme,
     long_description_content_type='text/markdown',
     license='PostgreSQL',
     author='Postgres Professional',