docs: fix typo in README

README.md

 [![Ruff](https://img.shields.io/endpoint?url=https://raw.githubusercontent.com/astral-sh/ruff/main/assets/badge/v2.json)](https://github.com/astral-sh/ruff)
-[![pipeline status](hhttps://gitlab.in2p3.fr/ipsl/sirta/ptr-ms/cigas-ptr-ms/badges/main/pipeline.svg)](https://gitlab.in2p3.fr/ipsl/sirta/ptr-ms/cigas-ptr-ms/-/commits/main)
+[![pipeline status](https://gitlab.in2p3.fr/ipsl/sirta/ptr-ms/cigas-ptr-ms/badges/main/pipeline.svg)](https://gitlab.in2p3.fr/ipsl/sirta/ptr-ms/cigas-ptr-ms/-/commits/main)
 [![coverage report](https://gitlab.in2p3.fr/ipsl/sirta/ptr-ms/cigas-ptr-ms/badges/main/coverage.svg)](https://gitlab.in2p3.fr/ipsl/sirta/ptr-ms/cigas-ptr-ms/-/commits/main)
 
 # CiGas PTR-MS Processing