Update README.md

README.md

@@ -17,6 +17,11 @@ The dataset targets scenarios where the student makes a math mistake.
 - `c_r` is the original tutor's response
 - `c_r_` is the experienced teacher's response
 
+Optionally, there is other interesting metadata from our Bridge method: 
+- `e` is the student error type that the experienced teacher identified
+- `z_what` is the strategy that the experienced teacher wants to use in their response
+- `z_why` is the intention that the experienced teacher wants to achieve in their response
+
 # 🌁 Bridging the Novice-Expert Gap via Models of Decision-Making
 
 [Paper Link](https://arxiv.org/abs/2310.10648), [Code Link](https://github.com/rosewang2008/bridge/)