get_record_options docs: mention that it won't recurse into nested options

[kyleam]

#35 (comment)

Do you think it could be worth adding some context about it being for 'simple cases' to the helper doc at some point (obviously low priority though)?

Sure, doc improvements are always welcome. In this case, it'd need more thought than my quick reply. I don't think I'd say "simple cases" in the docs because I'm not sure it's really that. As far as I know, it has full support for returning all of a record's option (with the documented caveat for the name "option"); it's just not going to recurse into every nested option and return their options. So, I think it should probably be framed in that way.