update examples

Former-commit-id: 3b5f138155d96b346bda18e465cf60ec7d99e19c

examples/lora_single_gpu/llama3_preprocess.yaml

@@ -1,13 +1,13 @@
-# model
+### model
 model_name_or_path: meta-llama/Meta-Llama-3-8B-Instruct
 
-# method
+### method
 stage: sft
 do_train: true
 finetuning_type: lora
 lora_target: q_proj,v_proj
 
-# dataset
+### dataset
 dataset: identity,alpaca_gpt4_en
 template: llama3
 cutoff_len: 1024
@@ -16,6 +16,6 @@ overwrite_cache: true
 preprocessing_num_workers: 16
 tokenized_path: saves/llama3-8b/dataset/sft
 
-# output
+### output
 output_dir: saves/llama3-8b/lora/sft
 overwrite_output_dir: true