update README

evaluation/infinite_bench_eval/README.md

@@ -1,8 +1,12 @@
 This is our script to evaluate InfiniteBench.
 
 You need to first install dependencies from requirement.txt
-```pip install -r requirement.txt```
+```
+pip install -r requirement.txt
+```
 
 Then you need to configure the model_path and data_home in *test_vllm.sh* and then run the following command
-```bash test_vllm.sh | grep "final display" ```
+```
+bash test_vllm.sh | grep "final display" 
+```
 to get the corresponding score