[doc][main] Correct mistakes in doc (#4945)

### What this PR does / why we need it?
Correct mistakes in doc

- vLLM version: v0.12.0
- vLLM main:
ad32e3e19c

---------

Signed-off-by: lilinsiman <lilinsiman@gmail.com>

docs/source/locale/zh_CN/LC_MESSAGES/tutorials/single_npu_multimodal.po

@@ -70,13 +70,13 @@ msgstr "运行 docker 容器，在单个 NPU 上启动 vLLM 服务器："
 #: ../../tutorials/single_npu_multimodal.md:154
 msgid ""
 "Add `--max_model_len` option to avoid ValueError that the "
-"Qwen2.5-VL-7B-Instruct model's max seq len (128000) is larger than the "
+"Qwen2.5-VL-7B-Instruct model's max_model_len (128000) is larger than the "
 "maximum number of tokens that can be stored in KV cache. This will differ "
 "with different NPU series base on the HBM size. Please modify the value "
 "according to a suitable value for your NPU series."
 msgstr ""
 "新增 `--max_model_len` 选项，以避免出现 ValueError，即 Qwen2.5-VL-7B-Instruct "
-"模型的最大序列长度（128000）大于 KV 缓存可存储的最大 token 数。该数值会根据不同 NPU 系列的 HBM 大小而不同。请根据你的 NPU"
+"模型的最大模型长度（128000）大于 KV 缓存可存储的最大 token 数。该数值会根据不同 NPU 系列的 HBM 大小而不同。请根据你的 NPU"
 " 系列，将该值设置为合适的数值。"
 
 #: ../../tutorials/single_npu_multimodal.md:157