Update README split pointers: default/test_other

README.md

@@ -3300,6 +3300,9 @@ configs:
     - 'default/test_clean_large/test_clean_large-00004-of-00007.parquet'
     - 'default/test_clean_large/test_clean_large-00005-of-00007.parquet'
     - 'default/test_clean_large/test_clean_large-00006-of-00007.parquet'
+  - split: 'test_other'
+    path:
+    - 'default/test_other/test_other-00000-of-00001.parquet'
 ---
 
 # Libriheavy