Fix license badge in README (#5646)

README.md

@@ -1,7 +1,7 @@
 [![CI](https://github.com/quickwit-oss/quickwit/actions/workflows/ci.yml/badge.svg)](https://github.com/quickwit-oss/quickwit/actions?query=workflow%3ACI+branch%3Amain)
 [![codecov](https://codecov.io/gh/quickwit-oss/quickwit/branch/main/graph/badge.svg?token=06SRGAV5SS)](https://codecov.io/gh/quickwit-oss/quickwit)
 [![Contributor Covenant](https://img.shields.io/badge/Contributor%20Covenant-2.0-4baaaa.svg)](CODE_OF_CONDUCT.md)
-[![License: AGPL V3](https://img.shields.io/badge/license-AGPL%20V3-blue)](LICENSE.md)
+[![License: Apache 2.0](https://img.shields.io/badge/license-Apache%202.0-blue?style=flat-square)](LICENSE)
 [![Twitter Follow](https://img.shields.io/twitter/follow/Quickwit_Inc?color=%231DA1F2&logo=Twitter&style=plastic)](https://twitter.com/Quickwit_Inc)
 [![Discord](https://img.shields.io/discord/908281611840282624?logo=Discord&logoColor=%23FFFFFF&style=plastic)](https://discord.quickwit.io)
 <br/>