Add DOI to .zenodo.json

Added DOI for Zenodo data upload.

Author: ocots

.zenodo.json

@@ -2,7 +2,7 @@
   "description": "Data for the article The Zermelo Navigation Problem on the 2-Sphere of Revolution: An Optimal Control Perspective with Applications to Micromagnetism, from Bernard Bonnard, Olivier Cots and Yannick Privat.",
   "title": "Data for The Zermelo Navigation Problem on the 2-Sphere of Revolution: An Optimal Control Perspective with Applications to Micromagnetism",
   "upload_type": "software",
-  "doi": "",
+  "doi": "10.5281/zenodo.17748876",
   "keywords": [
     "Zermelo navigation problem on the 2-Sphere of revolution",
     "minimal time optimal control",