Bump reference number

Author: Wovchena

README.md

@@ -1,5 +1,5 @@
 # [OpenVINO™ Toolkit](https://docs.openvino.ai/latest/index.html) - Open Model Zoo repository
-[![Stable release](https://img.shields.io/badge/version-2022.1-green.svg)](https://github.com/openvinotoolkit/open_model_zoo/releases/tag/2022.1)
+[![Stable release](https://img.shields.io/badge/version-2022.2-green.svg)](https://github.com/openvinotoolkit/open_model_zoo/releases/tag/2022.2)
 [![Gitter chat](https://badges.gitter.im/gitterHQ/gitter.png)](https://gitter.im/open_model_zoo/community)
 [![Apache License Version 2.0](https://img.shields.io/badge/license-Apache_2.0-green.svg)](LICENSE)