Add task category to dataset card

This PR adds `task_categories` metadata, sets it to `robotics`, and includes other relevant tags for the dataset.

README.md

@@ -1,7 +1,12 @@
 ---
-# For reference on dataset card metadata, see the spec: https://github.com/huggingface/hub-docs/blob/main/datasetcard.md?plain=1
-# Doc / guide: https://huggingface.co/docs/hub/datasets-cards
-{}
+task_categories:
+- robotics
+language:
+- en
+tags:
+- gui
+- interaction
+- vision
 ---
 
 # AGUVIS Collection