[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/tutorials/Qwen2.5-7B.md

@@ -153,11 +153,13 @@ Results and logs are saved to `benchmark/outputs/default/`. A sample accuracy re
 Refer to [Using AISBench for performance evaluation](../developer_guide/evaluation/using_ais_bench.md#execute-performance-evaluation) for details.
 
 ### Using vLLM Benchmark
+
 Run performance evaluation of `Qwen2.5-7B-Instruct` as an example.
 
 Refer to [vllm benchmark](https://docs.vllm.ai/en/latest/contributing/benchmarks.html) for more details.
 
 There are three `vllm bench` subcommand:
+
 - `latency`: Benchmark the latency of a single batch of requests.
 - `serve`: Benchmark the online serving throughput.
 - `throughput`: Benchmark offline inference throughput.