### What this PR does / why we need it?
reformat markdown files via markdownlint
- vLLM version: v0.13.0
- vLLM main:
bde38c11df
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Signed-off-by: root <root@LAPTOP-VQKDDVMG.localdomain>
Signed-off-by: MrZ20 <2609716663@qq.com>
Co-authored-by: root <root@LAPTOP-VQKDDVMG.localdomain>