Update lm_eval/tasks/tmlu/default/tmlu.yaml

Co-authored-by: Lintang Sutawika <lintang@sutawika.com>

lm_eval/tasks/tmlu/default/tmlu.yaml

 group: tmlu
+group_alias: TMLU
 task:
-- tmlu_social_sciences
-- tmlu_STEM
-- tmlu_humanities
-- tmlu_Taiwan Specific
-- tmlu_other
+  - group: tmlu_social_sciences
+    group_alias: Social Sciences
+    task:
+      - tmlu_social_sciences_tasks
+    aggregate_metric_list:
+      - metric: acc
+  - group: tmlu_stem
+    group_alias: STEM
+    task:
+      - tmlu_stem_tasks
+    aggregate_metric_list:
+      - metric: acc
+  - group: tmlu_humanities
+    group_alias: Humanities
+    task:
+      - tmlu_humanities_tasks
+    aggregate_metric_list:
+      - metric: acc
+  - group: tmlu_taiwan_specific
+    group_alias: Taiwan Specific
+    task:
+      - tmlu_taiwan_specific_tasks
+    aggregate_metric_list:
+      - metric: acc
+  - group: tmlu_other
+    group_alias: Other
+    task:
+      - tmlu_other_tasks
+    aggregate_metric_list:
+      - metric: acc
+aggregate_metric_list:
+  - metric: acc
+metadata:
+  version: 1