### What this PR does / why we need it? Doc Enhancement: Single NPU(Qwen3-8B) aclgraph mode + eager mode. Relate RFC: https://github.com/vllm-project/vllm-ascend/issues/1248 ### Does this PR introduce _any_ user-facing change? No changes. ### How was this patch tested? Preview Signed-off-by: leo-pony <nengjunma@outlook.com> Signed-off-by: leo-pony <nengjunma@outlook.com>