List c2_uniform_difficulty/round_2 in the score table

README.md

@@ -23,6 +23,7 @@ Layout: `<experiment>/round_<N>/` contains the safetensors shards, config, token
 | c1_no_history | 3 | 54.28% | 83.20% | 70.11% | `c1_no_history/round_3` |
 | c1_no_history | 4 | 50.33% | 82.80% | 70.89% | `c1_no_history/round_4` |
 | c2_uniform_difficulty | 1 | 52.63% | 81.80% | 70.33% | `c2_uniform_difficulty/round_1` |
+| c2_uniform_difficulty | 2 | 54.61% | 83.20% | 71.44% | `c2_uniform_difficulty/round_2` |
 | c3_uniform_category | 1 | 53.29% | 83.70% | 70.11% | `c3_uniform_category/round_1` |
 | c3_uniform_category | 2 | 53.95% | 81.80% | 70.67% | `c3_uniform_category/round_2` |
 | c3_uniform_category | 3 | 53.95% | 82.80% | 69.78% | `c3_uniform_category/round_3` |