Provide example yaml files for pulsar builtin connectors

[sijie]

We should provide example yaml files for pulsar builtin connectors.

[sijie]

I think we already have the generator to automatically generate example yaml files from the code. so should just integration the generator as part of website build.

[Anonymitaet]

@tuteng as discussed offline, could you please help generate the yaml files automatically?

[Anonymitaet]

@tuteng any progress on this issue?