[Docs][CPU backend] Add pre-built Arm CPU Docker images (#30491)

Signed-off-by: Ioana Ghiban <ioana.ghiban@arm.com>

docs/getting_started/installation/cpu.arm.inc.md

@@ -100,7 +100,23 @@ Testing has been conducted on AWS Graviton3 instances for compatibility.
 # --8<-- [end:build-wheel-from-source]
 # --8<-- [start:pre-built-images]
 
-Currently, there are no pre-built Arm CPU images.
+See [Using Docker](../../deployment/docker.md) for instructions on using the official Docker image.
+
+Stable vLLM Docker images are being pre-built for Arm from version 0.12.0. Available image tags are here: [https://gallery.ecr.aws/q9t5s3a7/vllm-arm64-cpu-release-repo](https://gallery.ecr.aws/q9t5s3a7/vllm-arm64-cpu-release-repo).
+Please replace `<version>` in the command below with a specific version string (e.g., `0.12.0`).
+
+```bash
+docker pull public.ecr.aws/q9t5s3a7/vllm-arm64-cpu-release-repo:v<version>
+```
+
+You can also access the latest code with Docker images. These are not intended for production use and are meant for CI and testing only. They will expire after several days.
+
+The latest code can contain bugs and may not be stable. Please use it with caution.
+
+```bash
+export VLLM_COMMIT=6299628d326f429eba78736acb44e76749b281f5 # use full commit hash from the main branch
+docker pull public.ecr.aws/q9t5s3a7/vllm-ci-postmerge-repo:${VLLM_COMMIT}-arm64-cpu
+```
 
 # --8<-- [end:pre-built-images]
 # --8<-- [start:build-image-from-source]