Update README.md

README.md

@@ -82,6 +82,7 @@ The dataset contains an entry for each image with the following fields:
   - abbyy_text: the text extracted from the predicted document segment using ABBY FineReader. Note that due to costs, only about 800 images have this data
   - tesseract_text: the text extracted from the predicted document segment using Tesseract.
   - vision_text: the text extracted from the predicted document segment using Google Vision.
+  - vision_labels: entities recognized by Google Vision in image blocks and separated by | (ex. Boating|Boat|Printmaking) 
 
 # Useage