Update setup.py

Updated Classifiers

setup.py

@@ -43,6 +43,10 @@ setuptools.setup(
     package_dir = {'DeBERTa':'DeBERTa'},
     classifiers=[
         "Programming Language :: Python :: 3",
+        "Programming Language :: Python :: 3.6",
+        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
     ],