fix url in comments

gym-unity/setup.py

 class VerifyVersionCommand(install):
     """
     Custom command to verify that the git tag matches our version
-    See https://circleci.com/blog/Adding-container-security-scanning-anchore/
+    See https://circleci.com/blog/continuously-deploying-python-packages-to-pypi-with-circleci/
     """
 
     description = "verify that the git tag matches our version"

ml-agents/setup.py

 class VerifyVersionCommand(install):
     """
     Custom command to verify that the git tag matches our version
-    See https://circleci.com/blog/Adding-container-security-scanning-anchore/
+    See https://circleci.com/blog/continuously-deploying-python-packages-to-pypi-with-circleci/
     """
 
     description = "verify that the git tag matches our version"