Added Description Field in Dataset Card Metadata

Added description field in dataset card Metadata to synch with the institute dataset collection.

README.md

@@ -17,6 +17,11 @@ tags:
 - mimicry
 - cv
 pretty_name: Curated Gold Standard Hoyal Cuthill Dataset
+description:  >-
+  Dorsal full body images of subspecies of Heliconius erato and Heliconius melpomene (18 subspecies total). 
+  There are 960 images with 320 specimens (3 images of each specimen: 
+  Original/ Bird transformed/ Butterfly transformed): original images are low-resolution RGB photographs (Hoyal Cuthill et al., 2019; 
+  Bird and Butterfly transformed were created using AcuityView with estimates of acuity from AcuityView 2.0 and (Land, 1997).
 size_categories:
 - n<1K
 ---