remove extra hyphen in mistral compose

Author: lionello

docs/tutorials/deploy-with-gpu.mdx

@@ -69,7 +69,7 @@ services:
         image: ghcr.io/mistralai/mistral-src/vllm:latest
         ports:
             - mode: host
-            - target: 8000
+              target: 8000
         // highlight-next-line
         command: ["--host","0.0.0.0","--model","TheBloke/Mistral-7B-Instruct-v0.2-AWQ","--quantization","awq","--dtype","auto","--tensor-parallel-size","1","--gpu-memory-utilization",".95","--max-model-len","8000"]
         deploy: