Update README.md

README.md

@@ -271,7 +271,13 @@ Introducing IsoBench, a benchmark dataset containing problems from four major ar
 ## Uses
 
 <!-- Address questions around how the dataset is intended to be used. -->
-There are 4 major domains: math, algorithm, game, and science. Each domain has several subtasks. We will show how to load the data for each subtask.
+There are 4 major domains: math, algorithm, game, and science. Each domain has several subtasks. 
+
+In tatal there are 1,630 samples in the `validation` split with ground-truth labels provided.
+
+The `test` split without labels is coming soon......
+
+We will show how to load the data for each subtask.
 
 ### TL;DR
 There are 10 subtasks in total: `math_breakpoint, math_convexity, math_parity, graph_connectivity, graph_maxflow, graph_isomorphism, winner_id, puzzle, chemistry, physics`.