[Lint]Style: reformat markdown files via markdownlint (#5884)

### What this PR does / why we need it?
reformat markdown files via markdownlint

- vLLM version: v0.13.0
- vLLM main:
bde38c11df

---------

Signed-off-by: root <root@LAPTOP-VQKDDVMG.localdomain>
Signed-off-by: MrZ20 <2609716663@qq.com>
Co-authored-by: root <root@LAPTOP-VQKDDVMG.localdomain>

docs/source/developer_guide/evaluation/using_opencompass.md

@@ -1,4 +1,5 @@
 # Using OpenCompass
+
 This document guides you to conduct accuracy testing using [OpenCompass](https://github.com/open-compass/opencompass).
 
 ## 1. Online Server
@@ -33,7 +34,7 @@ vllm serve Qwen/Qwen2.5-7B-Instruct --max_model_len 26240
 
 The vLLM server is started successfully, if you see information as below:
 
-```
+```shell
 INFO:     Started server process [6873]
 INFO:     Waiting for application startup.
 INFO:     Application startup complete.
@@ -41,7 +42,7 @@ INFO:     Application startup complete.
 
 Once your server is started, you can query the model with input prompts in a new terminal.
 
-```
+```shell
 curl http://localhost:8000/v1/completions \
     -H "Content-Type: application/json" \
     -d '{
@@ -53,6 +54,7 @@ curl http://localhost:8000/v1/completions \
 ```
 
 ## 2. Run C-Eval using OpenCompass for accuracy testing
+
 Install OpenCompass and configure the environment variables in the container:
 
 ```bash
@@ -107,13 +109,13 @@ models = [
 
 Run the following command:
 
-```
+```shell
 python3 run.py opencompass/configs/eval_vllm_ascend_demo.py --debug
 ```
 
 After 1 to 2 minutes, the output is shown below:
 
-```
+```shell
 The markdown format results is as below:
 
 | dataset | version | metric | mode | Qwen2.5-7B-Instruct-vLLM-API |