Combine TabArena classification and regression figures

README.md

@@ -91,7 +91,7 @@ All TabArena results reported below are taken from the official [TabArena leader
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-  <img src="figures/tabarena_elo_cls.svg" alt="TabArena classification Elo" width="47%"><img src="figures/tabarena_elo_reg.svg" alt="TabArena regression Elo" width="47%">
+  <img src="figures/tabarena_elo_cls_reg.svg" alt="TabArena classification Elo on the left and regression Elo on the right" width="94%">
   <br>
   <em>Figure 2. TabArena Elo scores on classification (left) and regression (right) tasks.</em>
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