Update comment for P5 FI_* environment variable

Author: KeitaW

3.test_cases/pytorch/FSDP/kubernetes/llama2_13b-fsdp.yaml

@@ -45,7 +45,7 @@ spec:
                   nvidia.com/gpu: $GPU_PER_NODE
                   vpc.amazonaws.com/efa: $EFA_PER_NODE
               env:
-              # for P5 FI_* should be commented out
+              # for P5 FI_* should be uncommented
               - name: LOGLEVEL
                 value: "DEBUG"
               #- name: FI_PROVIDER
@@ -112,4 +112,4 @@ spec:
                 - name: shmem
                   mountPath: /dev/shm
                 - name: local
-                  mountPath: /local
+                  mountPath: /local