### What this PR does / why we need it?
Fix:
```
DeprecationWarning: max_tokens is deprecated in favor of the max_completion_tokens field.
```
- vLLM version: v0.14.1
- vLLM main:
d68209402d
Signed-off-by: shen-shanshan <467638484@qq.com>
vLLM Ascend Plugin documents
Live doc: https://docs.vllm.ai/projects/ascend
Build the docs
# Install dependencies.
pip install -r requirements-docs.txt
# Build the docs.
make clean
make html
# Build the docs with translation
make intl
# Open the docs with your browser
python -m http.server -d _build/html/
Launch your browser and open:
- English version: http://localhost:8000
- Chinese version: http://localhost:8000/zh_CN