Add Zenodo DOI

README.md

@@ -83,4 +83,4 @@ Override with `--ctx N` (e.g. `bash scripts/mac_bench/run_probe.sh 9b --ctx 8192
 
 ## License & attribution
 
-Apache 2.0. Paper: [technical report v1 (PDF)](https://github.com/continker/metrollm-bench/blob/main/paper.pdf); full citation in the [parent repository](https://github.com/continker/metrollm-bench#citation).
+Apache 2.0. Paper: [technical report v1 (PDF)](https://github.com/continker/metrollm-bench/blob/main/paper.pdf) · [DOI 10.5281/zenodo.21893944](https://doi.org/10.5281/zenodo.21893944); full citation in the [parent repository](https://github.com/continker/metrollm-bench#citation).