Updated project URLs. (#59)

Co-authored-by: Christoph Souris <christoph.souris@softwareag.com>

Author: chisou

pyproject.toml

@@ -7,3 +7,9 @@ requires = [
 build-backend = "setuptools.build_meta"
 
 [tool.setuptools_scm]
+
+[project.urls]
+Homepage = "https://github.com/SoftwareAG/cumulocity-python-api"
+Source = "https://github.com/SoftwareAG/cumulocity-python-api"
+Issues = "https://github.com/SoftwareAG/cumulocity-python-api/issues"
+Documentation = "https://cumulocity-python-api.readthedocs.io/en/latest/"