diff --git a/examples/accelerate/fsdp_config.yaml b/examples/accelerate/fsdp_config.yaml
index abfbf8f6..60025597 100644
--- a/examples/accelerate/fsdp_config.yaml
+++ b/examples/accelerate/fsdp_config.yaml
@@ -15,8 +15,8 @@ fsdp_config:
 machine_rank: 0
 main_training_function: main
 mixed_precision: fp16
-num_machines: 1
-num_processes: 2
+num_machines: 1 # the number of nodes
+num_processes: 2 # the number of GPUs in all nodes
 rdzv_backend: static
 same_network: true
 tpu_env: []
diff --git a/examples/accelerate/master_config.yaml b/examples/accelerate/master_config.yaml
index aa41f7e1..9c8fc275 100644
--- a/examples/accelerate/master_config.yaml
+++ b/examples/accelerate/master_config.yaml
@@ -8,8 +8,8 @@ main_process_ip: 192.168.0.1
 main_process_port: 29555
 main_training_function: main
 mixed_precision: fp16
-num_machines: 2
-num_processes: 16
+num_machines: 2 # the number of nodes
+num_processes: 16 # the number of GPUs in all nodes
 rdzv_backend: static
 same_network: true
 tpu_env: []
diff --git a/examples/accelerate/single_config.yaml b/examples/accelerate/single_config.yaml
index ddb5c910..97f8c633 100644
--- a/examples/accelerate/single_config.yaml
+++ b/examples/accelerate/single_config.yaml
@@ -6,8 +6,8 @@ gpu_ids: all
 machine_rank: 0
 main_training_function: main
 mixed_precision: fp16
-num_machines: 1
-num_processes: 4
+num_machines: 1 # the number of nodes
+num_processes: 4 # the number of GPUs in all nodes
 rdzv_backend: static
 same_network: true
 tpu_env: []
diff --git a/examples/accelerate/slave_config.yaml b/examples/accelerate/slave_config.yaml
index fcb4bb93..e4a63e82 100644
--- a/examples/accelerate/slave_config.yaml
+++ b/examples/accelerate/slave_config.yaml
@@ -8,8 +8,8 @@ main_process_ip: 192.168.0.1
 main_process_port: 29555
 main_training_function: main
 mixed_precision: fp16
-num_machines: 2
-num_processes: 16
+num_machines: 2 # the number of nodes
+num_processes: 16 # the number of GPUs in all nodes
 rdzv_backend: static
 same_network: true
 tpu_env: []
diff --git a/examples/merge_lora/merge.sh b/examples/merge_lora/merge.sh
index bd2babb8..c1f15fce 100644
--- a/examples/merge_lora/merge.sh
+++ b/examples/merge_lora/merge.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# DO NOT use quantized model or quantization_bit when merging lora weights
 
 CUDA_VISIBLE_DEVICES= python ../../src/export_model.py \
     --model_name_or_path meta-llama/Llama-2-7b-hf \