Add forwardPorts setting to devcontainer

Signed-off-by: Wei-Chun, Chang <[email protected]>

docs/docs/recce-cloud/setup-gh-codespaces.md

@@ -35,6 +35,7 @@ GitHub Codespaces is a development environment provided by GitHub that allows de
             "DBT_USER": "${{ secrets.DBT_USER }}",
             "DBT_PASSWORD": "${{ secrets.DBT_PASSWORD }}",
         },
+        "forwardPorts": [8000],
         "postStartCommand": "recce server --cloud --review"
     }
     ```