### What this PR does / why we need it? multi_node_pd_disaggregation_mooncake.md update. Fix issues encountered during service startup. ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? By ci - vLLM version: v0.11.0rc3 - vLLM main: https://github.com/vllm-project/vllm/commit/v0.11.0 Signed-off-by: wangxiaoteng@huawei.com <wangxiaoteng@huawei.com>