Can jenkins integration documents be optimized?

Jenkins | GitLab Can you optimize this jenkins integration documentation? Added a prompt or step to enable networking “Allow requests from webhooks and integrations to the local network”

This seems to be a requirement of the new version. I checked it all day long. When I added it, it just prompted a verification failure without any extra information.
There is no error message in the log, which cost me a lot of time, this can help some people integrate jenkins faster.
For some reasons, I cannot directly register a gitlab account to provide feedback on the document. I can only come to the community.