Update on "add instructions about getting mmlu score for instruct models"

Differential Revision: [D64254491](https://our.internmc.facebook.com/intern/diff/D64254491)

[ghstack-poisoned]

Author: helunwencser

examples/models/llama2/eval_llama_lib.py

@@ -295,9 +295,9 @@ def eval_llama(
     with torch.no_grad():
         eval_results = simple_evaluate(
             model=eval_wrapper,
-            tasks=args.tasks,
-            num_fewshot=args.num_fewshot,
-            limit=args.limit,
+            tasks=args.tasks,  # pyre-ignore: Undefined attribute [16]: `argparse.ArgumentParser` has no attribute `tasks`
+            num_fewshot=args.num_fewshot,  # pyre-ignore: Undefined attribute [16]: `argparse.ArgumentParser` has no attribute `num_fewshot`
+            limit=args.limit,  # pyre-ignore: Undefined attribute [16]: `argparse.ArgumentParser` has no attribute `limit`
         )
 
     for task, res in eval_results["results"].items():