intro update

src/display/about.py

@@ -28,7 +28,7 @@ TITLE = """<h1 align="center" id="space-title"><code>/\/</code> &nbsp; Open CoT
 INTRODUCTION_TEXT = """
 The `/\/` Open CoT Leaderboard tracks the reasoning skills of LLMs, measured as their ability to generate **effective chain-of-thought reasoning traces**.
 
-The leaderboard reports **accuracy gains** achieved by using CoT, i.e.: _accuracy gain Δ_ = _CoT accuracy_ — _baseline accuracy_.
+The leaderboard reports **accuracy gains** achieved by using CoT, i.e.: _accuracy gain Δ_ = _accuracy with CoT_ — _accuracy w/o CoT_.
 
 See the "About" tab for more details and motivation.
 """