docs: utils files and readme

CITATION.cff

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+cff-version: 1.2.0
+title: "Global Wheat Head Detection (GWHD) dataset"
+authors:
+  - family-names: David
+    given-names: Etienne
+  - family-names: Madec
+    given-names: Simon
+  - family-names: Sadeghi-Tehran
+    given-names: Pouria
+  - family-names: Aasen
+    given-names: Helge
+  - family-names: Zheng
+    given-names: Bangyou
+  - family-names: Liu
+    given-names: Shouyang
+  - family-names: Kirchgessner
+    given-names: Norbert
+  - family-names: Ishikawa
+    given-names: Goro
+  - family-names: Nagasawa
+    given-names: Koichi
+  - family-names: Badhon
+    given-names: Minhajul A
+  - name: "and others"
+year: 2020
+version: "1.0"
+doi: 10.5281/zenodo.5092309
+license: CC-BY-4.0
+type: dataset
+url: https://doi.org/10.5281/zenodo.5092309
+journal: Plant Phenomics

LICENSE

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+Creative Commons Attribution 4.0 International
+
+https://creativecommons.org/licenses/by/4.0/
+
+You are free to:
+- Share — copy and redistribute the material in any medium or format
+- Adapt — remix, transform, and build upon the material for any purpose, even commercially.
+
+Under the following terms:
+- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made.

README.md

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+# Global Wheat Head Detection (GWHD) dataset
+
+Cite as:
+
+> David, Etienne et al. (2020). Global Wheat Head Detection (GWHD) dataset: a large and diverse dataset of high-resolution RGB-labelled images to develop and benchmark wheat head detection methods. Plant Phenomics, 2020. Science Partner Journal.  
+> DOI: [10.5281/zenodo.5092309](https://doi.org/10.5281/zenodo.5092309)
+
+License: [CC-BY-4.0](https://creativecommons.org/licenses/by/4.0/)

gwhd2021_set0.yaml

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+nc: 1
+train: ../dataset/gwhd_2021/gwhd2021_set0/train/images
+val: ../dataset/gwhd_2021/gwhd2021_set0/val/images
+test: ../dataset/gwhd_2021/gwhd2021_set0/test/images
+
+names: ['wh']