Added Description Field in Dataset Card Metadata

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

README.md

@@ -12,6 +12,10 @@ tags:
 - animals
 - CV
 pretty_name: Fish-Vista
+descriptionP: >-
+   Fish images for species classification, trait identification, and trait segmentation. 
+   An imbalanced dataset design for biological and evolutionary trait discovery, model interpretability,
+   and weakly supervised semantic segmentation.
 size_categories:
 - 10K<n<100K
 language: