Add "extended support" as a badge (#12024)

* extended support

* addressing comments

README.md

@@ -1,6 +1,8 @@
 # Qiskit
+
 [![License](https://img.shields.io/github/license/Qiskit/qiskit.svg?)](https://opensource.org/licenses/Apache-2.0) <!--- long-description-skip-begin -->
-[![Release](https://img.shields.io/github/release/Qiskit/qiskit.svg)](https://github.com/Qiskit/qiskit/releases)
+[![Current Release](https://img.shields.io/github/release/Qiskit/qiskit.svg?logo=Qiskit)](https://github.com/Qiskit/qiskit/releases)
+[![Extended Support Release](https://img.shields.io/github/v/release/Qiskit/qiskit?sort=semver&filter=0.*&logo=Qiskit&label=extended%20support)](https://github.com/Qiskit/qiskit/releases?q=tag%3A0)
 [![Downloads](https://img.shields.io/pypi/dm/qiskit.svg)](https://pypi.org/project/qiskit/)
 [![Coverage Status](https://coveralls.io/repos/github/Qiskit/qiskit/badge.svg?branch=main)](https://coveralls.io/github/Qiskit/qiskit?branch=main)
 ![PyPI - Python Version](https://img.shields.io/pypi/pyversions/qiskit)