Add citation file

test to see if it will update the auto-generated DOI, this is specifically for DOI 10.57967/hf/2668

CITATION.cff

@@ -0,0 +1,34 @@
+abstract: "Subset of the collection records from Chris Jiggins' research group at the University of Cambridge, collection covers nearly 20 years of field studies. This subset contains approximately 36,189 RGB images of 11,962 specimens (29,134 images of 10,086 specimens across all Heliconius). Many records have both images and locality data."
+authors:
+- family-names: Lawrence
+  given-names: "Christopher"
+  orcid: "https://orcid.org/0000-0002-3846-5968"
+- family-names: "Campolongo"
+  given-names: "Elizabeth G."
+  orcid: "https://orcid.org/0000-0003-0846-2413"
+cff-version: 1.2.0
+keywords:
+  - imageomics
+  - butterfly
+  - heliconius
+  - dorsal
+  - ventral
+  - RGB
+  - full body
+  - separated wings
+  - mimicry
+  - CV
+  - erato
+  - melpomene
+  - hybrids
+  - cross types
+  - wild
+  - lab-bred
+  - mimic groups
+message: "If you use this dataset, please cite both this compilation and all image sources provided in jiggins.bib."
+url: "https://huggingface.co/datasets/imageomics/Heliconius-Collection_Cambridge-Butterfly"
+title: "Heliconius-Collection_Cambridge-Butterfly"
+version: 1.0.0
+type: dataset
+# see jiggins.bib file: https://huggingface.co/datasets/imageomics/Heliconius-Collection_Cambridge-Butterfly/blob/main/metadata/jiggins.bib
+# for all references (be sure to include in citation!)