docs: update readme

README.md

@@ -56,7 +56,7 @@ task_ids:
 - **Repository:** https://github.com/nala-cub/prost
 - **Paper:** 
 - **Leaderboard:**
-- **Point of Contact:** [Stéphane Aroca-Ouellette](mailto:stephane.aroca-ouellette@colorado.edu), [Cory Paik](mailto:cory.paik@colorado.edu)
+- **Point of Contact:** [Stéphane Aroca-Ouellette](mailto:stephane.aroca-ouellette@colorado.edu)
 
 ### Dataset Summary
 *Physical Reasoning about Objects Through Space and Time* (PROST) is a probing dataset to evaluate the ability of pretrained LMs to understand and reason about the physical world. PROST consists of 18,736 cloze-style multiple choice questions from 14 manually curated templates, covering 10 physical reasoning concepts:  direction, mass, height, circumference, stackable, rollable, graspable, breakable, slideable, and bounceable. 
@@ -99,8 +99,7 @@ An example looks like this:
 - `question`: A cloze style continuation of the context.
 - `ex_question`: A multiple-choice style question.
 - `group`: The question group, e.g. *bouncing*
-- `label`: A ClassLabel indication the correct option 
-- `example_idx`: an integer indicating the sorted example index.
+- `label`: A ClassLabel indication the correct option
 - `name':` The template identifier.
 
 ### Data Splits