Searching for macro documentation is unintuitive

[rcxdude]

Searching for a macro is currently confusing, because searching for macro_name! does not return any results, and usually when searching for macro_name the item of importance is not near the stop and is in std::macros::macro_name, which is unexpected.

I think the best approach would be to allow searching for macro_name! and have the macro appear in the list as std::macros::macro_name!.