Clarification about how to renew the certificate for kubero UI

I just installed kubero with `kubero install` on digital ocean. When accessing the kubero ui i get a certificate warning and the certificate shows as "Kubernetes Ingress Controller Fake Certificate".

I didn't want to file this as a bug, as i think this could be fixed by reissuing the certificate. So, for me this is a clarification about how to renew the certificate for the kubero UI. What do you think about adding this to the documentation?

Thanks in advance!

Roberto