[Doc] Add guides for custom docker image build on NVIDIA CUDA [Skip-CI] (#1386)

Signed-off-by: Hyoseop Song <crad_on25@naver.com>
Signed-off-by: Hyoseop Song  <crad_on25@naver.com>
Co-authored-by: Zhou Taichang <tzhouam@connect.ust.hk>
Co-authored-by: Alicia <115451386+congw729@users.noreply.github.com>

docs/getting_started/installation/gpu.md

@@ -94,6 +94,10 @@ Note: Pre-built wheels are currently available for vLLM-Omni 0.11.0rc1, 0.12.0rc
 
 ### Build your own docker image
 
+=== "NVIDIA CUDA"
+
+    --8<-- "docs/getting_started/installation/gpu/cuda.inc.md:build-docker"
+
 === "AMD ROCm"
 
     --8<-- "docs/getting_started/installation/gpu/rocm.inc.md:build-docker"