Fix SPDX license identifier

Fix license SPDX identifier in composer.json from GPLv3 to GPL-3.0-or-later

Change license to GPLv3

Just change license in composer.json to GPLv3.

First Oficial Release

First oficial release!

First oficial release added with nothing new. Just add a badge button to show release information.

This package is working fine, bot soon i will add new features.

First release

First release!

This package is working fine, bot soon i will add new features.