Make distinct code and console admonitions so readers are less likely to miss them (#20585)

Signed-off-by: Harry Mellor <19981378+hmellor@users.noreply.github.com>

docs/deployment/nginx.md

@@ -36,7 +36,7 @@ docker build . -f Dockerfile.nginx --tag nginx-lb
 
 Create a file named `nginx_conf/nginx.conf`. Note that you can add as many servers as you'd like. In the below example we'll start with two. To add more, add another `server vllmN:8000 max_fails=3 fail_timeout=10000s;` entry to `upstream backend`.
 
-??? Config
+??? console "Config"
 
     ```console
     upstream backend {
@@ -95,7 +95,7 @@ Notes:
 - The below example assumes GPU backend used. If you are using CPU backend, remove `--gpus device=ID`, add `VLLM_CPU_KVCACHE_SPACE` and `VLLM_CPU_OMP_THREADS_BIND` environment variables to the docker run command.
 - Adjust the model name that you want to use in your vLLM servers if you don't want to use `Llama-2-7b-chat-hf`.
 
-??? Commands
+??? console "Commands"
 
     ```console
     mkdir -p ~/.cache/huggingface/hub/