Allow read and write of properties

[lesstif]

Hi @Schrank, Happy new year & Thank you for your contributions.

Could you revise your PR 2 things, please?

1. to drop the PHPDoc base annotation & to modify to property's type declaration like below.

before

/** @var string */
public $key;

after

public string $key;

2. add example code and documentation link into README.doc

[Schrank]

@lesstif Happy new year! - Am I correct, that you need to wait another three weeks, before you celebrate? Or do you celebrate the "European" new year as well? Or am I totally wrong? I remember to read something about Korean New Year is not the same day as "ours" 😅

Please have a look on the changes, wether they are as you want them :-)

And thanks for this awesome lib, saved SOO much time - and was easy to extend <3

[lesstif]

@Schrank Korean are celebrating the European new year and the lunar new year both. :) Repeat again, Thank you for your volunteering.

[Schrank]

Korean are celebrating the European new year and the lunar new year both. :)

Lucky you!

Thanks for merging <3