docs: update kvbm guide according to docker build change (#6264)

Signed-off-by: Ziqi Fan <ziqif@nvidia.com>

docs/pages/components/kvbm/kvbm-guide.md

@@ -49,10 +49,11 @@ To build KVBM from source, see the detailed instructions in the [KVBM bindings R
 docker compose -f deploy/docker-compose.yml up -d
 
 # Build a dynamo vLLM container (KVBM is built in by default)
-./container/build.sh --framework vllm
+python container/render.py --framework vllm --target runtime --output-short-filename
+docker build -t dynamo:latest-vllm-runtime -f container/rendered.Dockerfile .
 
 # Launch the container
-./container/run.sh --framework vllm -it --mount-workspace --use-nixl-gds
+container/run.sh --image dynamo:latest-vllm-runtime -it --mount-workspace --use-nixl-gds
 ```
 
 ### Aggregated Serving
@@ -99,10 +100,11 @@ vllm serve --kv-transfer-config '{"kv_connector":"DynamoConnector","kv_role":"kv
 docker compose -f deploy/docker-compose.yml up -d
 
 # Build a dynamo TRTLLM container (KVBM is built in by default)
-./container/build.sh --framework trtllm
+python container/render.py --framework trtllm --target runtime --output-short-filename
+docker build -t dynamo:latest-trtllm-runtime -f container/rendered.Dockerfile .
 
 # Launch the container
-./container/run.sh --framework trtllm -it --mount-workspace --use-nixl-gds
+container/run.sh --image dynamo:latest-trtllm-runtime -it --mount-workspace --use-nixl-gds
 ```
 
 ### Aggregated Serving

lib/bindings/kvbm/README.md

@@ -43,7 +43,7 @@ The pip wheel is built through a Docker build process:
 
 ```bash
 # Render and build the Docker image with KVBM enabled (from the dynamo repo root)
-python container/render.py --framework=dynamo --target==runtime --output-short-filename
+python container/render.py --framework dynamo --target runtime --output-short-filename
 docker build --build-arg ENABLE_KVBM="true" -f container/rendered.Dockerfile .
 ```