[Documentation][AMD] Add information about prebuilt ROCm vLLM docker for perf validation purpose (vllm-project#12281)

Signed-off-by: Hongxia Yang <[email protected]>

Author: hongxiayang

docs/source/getting_started/installation/gpu/rocm.inc.md

@@ -13,6 +13,14 @@ vLLM supports AMD GPUs with ROCm 6.3.
 
 Currently, there are no pre-built ROCm wheels.
 
+However, the [AMD Infinity hub for vLLM](https://hub.docker.com/r/rocm/vllm/tags) offers a prebuilt, optimized
+docker image designed for validating inference performance on the AMD Instinct™ MI300X accelerator.
+
+```{tip}
+Please check [LLM inference performance validation on AMD Instinct MI300X](https://rocm.docs.amd.com/en/latest/how-to/performance-validation/mi300x/vllm-benchmark.html)
+for instructions on how to use this prebuilt docker image.
+```
+
 ### Build wheel from source
 
 0. Install prerequisites (skip if you are already in an environment/docker with the following installed):