Add documentation link to pyproject.toml (#191)

Add documentation link

Author: greschd

pyproject.toml

@@ -12,7 +12,8 @@ authors = ["ANSYS, Inc. <[email protected]>"]
 maintainers = ["PyAnsys developers <[email protected]>"]
 readme = "README.rst"
 repository = "https://github.com/pyansys/pydpf-composites"
-    classifiers = [
+documentation = "https://composites.dpf.docs.pyansys.com"
+classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Programming Language :: Python :: 3",
     "License :: OSI Approved :: MIT License",