CertificateBuilder running example

[Adrien-Bodineau]

The provided example

https://docs.rs/x509-cert/latest/x509_cert/builder/struct.CertificateBuilder.html

is not really helpful as it does not compile due to lack of public key and signers, and the documentation as a whole is quite lacking clearness. It is quite hard to use the crate without being an "expert".

It is possible to have a fully functioning example ?