Update README.md

Update description and add new tags from model card

README.md

@@ -8,12 +8,22 @@ app_file: app.py
 pinned: false
 license: mit
 description: >-
-  Generate object detection metadata for fish images using imageomics/Drexel-metadata-generator model.
+  Generate object detection metadata (e.g., measurements and trait presence/absence) for fish specimen images using imageomics/Drexel-metadata-generator model.
 tags:
   - fish
   - biology
   - computer-vision
   - visualization
+  - bioinformatics
+  - metadata
+  - image analysis
+  - applied machine learning
+  - contrast enhancement
+  - detectron2
+  - images
+  - museum specimen
+  - metadata generation
+  - object detection 
 ---
 
 # Drexel Metadata App