Docs: Move dpsk docs forward a step (#3894)

docs/index.rst

@@ -58,6 +58,7 @@ The core features include:
       :maxdepth: 1
       :caption: References
 
+      references/deepseek
       references/general
       references/hardware
       references/advanced_deploy

docs/references/advanced_deploy.rst

@@ -3,6 +3,5 @@ Multi-Node Deployment
 .. toctree::
    :maxdepth: 1
 
-   deepseek.md
    multi_node.md
    k8s.md

docs/references/deepseek.md

-# DeepSeek Model Usage and Optimizations
+# DeepSeek Usage
 
 SGLang provides several optimizations specifically designed for the DeepSeek model to boost its inference speed. This document outlines current optimizations for DeepSeek. Additionally, the SGLang team is actively developing enhancements for [DeepSeek V3](https://github.com/sgl-project/sglang/issues/2591).
 

docs/references/deepseek.rst

+Multi-Node Deployment
+==========================
+.. toctree::
+   :maxdepth: 1
+
+   deepseek.md