The description below is wrong in README doc file.

[koolc]

the wrong edition

true when created by the Object constructor, or Object.create(null).

...
isPlainObject(null);
//=> true

false when not created by the Object constructor.

...
isPlainObject(Object.create(null));
//=> false

the correct edition

true when created by the Object constructor, or Object.create(null).

...
isPlainObject(Object.create(null));
//=> true

false when not created by the Object constructor.

...
isPlainObject(null);
//=> false

[TrySound]

Hi, could you send PR?