Add citation file

CITATION.cff

@@ -13,10 +13,28 @@ authors:
 - family-names: "Vilaplana"
   given-names: "Verónica"
   orcid: "https://orcid.org/0000-0001-6924-9961"
-title: "SurvLIMEpy: A Python package implementing SurvLIME}"
-publisher: "arXiv"
-year: 2023
-doi: 10.48550/ARXIV.2302.10571
+title: "SurvLIMEpy: A Python package implementing SurvLIME"
 license-url: "https://github.com/imatge-upc/SurvLIMEpy/blob/main/LICENSE"
 repository-code: "https://github.com/imatge-upc/SurvLIMEpy"
 url: "https://github.com/imatge-upc/SurvLIMEpy"
+preferred-citation:
+  type: article
+  authors:
+  - family-names: "Pachón-García"
+    given-names: "Cristian"
+    orcid: "https://orcid.org/0000-0001-9518-4874"
+  - family-names: "Hernández-Pérez"
+    given-names: "Carlos"
+    orcid: "https://orcid.org/0000-0002-0054-8573"
+  - family-names: "Delicado"
+    given-names: "Pedro"
+    orcid: "https://orcid.org/0000-0003-3933-4852"
+  - family-names: "Vilaplana"
+    given-names: "Verónica"
+    orcid: "https://orcid.org/0000-0001-6924-9961"
+  doi: "10.48550/ARXIV.2302.10571"
+  journal: "arXiv"
+  publisher: "arXiv"
+  year: 2023
+  month: 3
+  title: "SurvLIMEpy: A Python package implementing SurvLIME"