Better documentation for config

[glensc]

The current readme describing config is pretty minimal:

--config: Specify a path to a config file containing the pino-pretty options. pino-pretty will attempt to read from a .pino-prettyrc in your current directory (process.cwd) if not specified

what is the syntax of the config (json, yaml, key=value text)? what directives can be put there?

perhaps add example config to the repository?

[jsumners]

Would you like to submit a pull request to address this?

[glensc]

depends on what the content be, since I don't know what the content is, I'm not sure.

[jsumners]

The source code is readily available.

[glensc]

No then