Update README: add test result

README.md

@@ -29,6 +29,7 @@ train_steps_per_second: 0.544
 
 ## Validation Set Performance
 Dataset used: test split of [fdyrd/MATH](https://huggingface.co/datasets/fdyrd/MATH).
+Metric: accuracy
 
 <table>
         <tr>
@@ -108,4 +109,13 @@ Dataset used: test split of [fdyrd/MATH](https://huggingface.co/datasets/fdyrd/M
                 <td> 0.184 </td>
                 <td> 0.166 </td>
         </tr>
-</table>
+</table>
+
+## Test Set Performance
+Dataset used: [MATH500](
+
+![image/png](https://cdn-uploads.huggingface.co/production/uploads/6647f8455fdb710820634332/vOLW87Ck1kGWp75cyiAOU.png)
+
+)
+
+Accuracy: 0.286