Add DOI to README.md

Author: danlooo

README.md

@@ -4,6 +4,7 @@
 [![Dev](https://img.shields.io/badge/docs-dev-blue.svg)](https://earthyscience.github.io/RQADeforestation.jl/dev/)
 [![Build Status](https://github.com/EarthyScience/RQADeforestation.jl/actions/workflows/CI.yml/badge.svg?branch=main)](https://github.com/EarthyScience/RQADeforestation.jl/actions/workflows/CI.yml?query=branch%3Amain)
 [![Coverage](https://codecov.io/gh/EarthyScience/RQADeforestation.jl/branch/main/graph/badge.svg)](https://codecov.io/gh/EarthyScience/RQADeforestation.jl)
+[![DOI](https://zenodo.org/badge/879735431.svg)](https://doi.org/10.5281/zenodo.15076234)
 
 This is the Julia package developed within the [FAIRSenDD project](https://github.com/EarthyScience/FAIRSenDD).