adjust license badges

Author: btschwertfeger

README.md

@@ -3,7 +3,7 @@
 <div align="center">
 
 [![GitHub](https://badgen.net/badge/icon/github?icon=github&label)](https://github.com/btschwertfeger/python-kraken-sdk)
-[![License: GPL v3](https://img.shields.io/badge/License-GPLv3-orange.svg)](https://www.gnu.org/licenses/gpl-3.0)
+[![License](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 [![Generic badge](https://img.shields.io/badge/python-3.11+-blue.svg)](https://shields.io/)
 [![Downloads](https://static.pepy.tech/personalized-badge/python-kraken-sdk?period=total&units=abbreviation&left_color=grey&right_color=orange&left_text=downloads)](https://pepy.tech/project/python-kraken-sdk)
 

docs/links.rst

@@ -14,8 +14,8 @@
 .. |GitHub badge|              image:: https://badgen.net/badge/icon/github?icon=github&label
                               :target: https://github.com/btschwertfeger/python-kraken-sdk
                               :alt:    GitHub
-.. |License badge|             image:: https://img.shields.io/badge/License-GPLv3-orange.svg
-                              :target: https://www.gnu.org/licenses/gpl-3.0
+.. |License badge|             image:: https://img.shields.io/badge/License-Apache_2.0-blue.svg
+                              :target: https://opensource.org/licenses/Apache-2.0
                               :alt:    License
 .. |PyVersions badge|          image:: https://img.shields.io/badge/python-3.11+-blue.svg
                               :target: https://github.com/btschwertfeger/python-kraken-sdk