[CI/Build] Add markdown linter (#11857)

Signed-off-by: Rafael Vasquez <rafvasq21@gmail.com>

docs/source/deployment/integrations/llamastack.md

@@ -7,7 +7,7 @@ vLLM is also available via [Llama Stack](https://github.com/meta-llama/llama-sta
 To install Llama Stack, run
 
 ```console
-$ pip install llama-stack -q
+pip install llama-stack -q
 ```
 
 ## Inference using OpenAI Compatible API