update readme

Author: 545999961

examples/finetune/embedder/README.md

@@ -75,9 +75,11 @@ cd FlagEmbedding/scripts
 python add_reranker_score.py \
 --input_file toy_finetune_data_minedHN.jsonl \
 --output_file toy_finetune_data_score.jsonl \
---range_for_sampling 2-200 \
---negative_number 15 \
---use_gpu_for_searching 
+--reranker_name_or_path BAAI/bge-reranker-v2-m3 \
+--devices cuda:0 cuda:1 \
+--cache_dir ./cache/model \
+--reranker_query_max_length 512 \
+--reranker_max_length 1024
 ```
 
 - **`input_file`**: path to save JSON data with mined hard negatives for finetuning