doc: argument types for console methods

Refs: https://github.com/nodejs/node/issues/9399
PR-URL: https://github.com/nodejs/node/pull/11554


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>