Add DOI badge and citation note

README.md

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 <p align="center"><img src="https://github.com/rrwick/Autocycler/wiki/images/logo.png" alt="Autocycler logo" width="90%"></p>
 
-[![License GPL v3](https://img.shields.io/badge/license-GPL%20v3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0.en.html) ![Rust](https://github.com/rrwick/Autocycler/actions/workflows/rust.yml/badge.svg)
+[![License GPL v3](https://img.shields.io/badge/license-GPL%20v3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0.en.html) ![Rust](https://github.com/rrwick/Autocycler/actions/workflows/rust.yml/badge.svg) [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.14642607.svg)](https://doi.org/10.5281/zenodo.14642607)
 
 Autocycler is a tool for generating consensus long-read assemblies for bacterial genomes. It is the successor to [Trycycler](https://github.com/rrwick/Trycycler), and for most users, I recommend Autocycler over Trycycler.
 
 For installation instructions, usage, deeper explanations and more, head over to the [Autocycler wiki](https://github.com/rrwick/Autocycler/wiki)!
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+Autocycler does not (yet) have a publication. If you use it in your research, please cite the following:<br>
+Wick RR. Autocycler. https://github.com/rrwick/Autocycler. 2025. doi:[10.5281/zenodo.14642608](https://doi.org/10.5281/zenodo.14642608).