add sandbox_user_id to run command which is neccesary (#1641)

docs/modules/usage/intro.mdx

@@ -80,6 +80,7 @@ OpenDevin runs bash commands within a Docker sandbox, so it should not affect yo
 ```
 docker run \
     -e LLM_API_KEY \
+    -e SANDBOX_USER_ID=$(id -u) \
     -e WORKSPACE_MOUNT_PATH=$WORKSPACE_BASE \
     -v $WORKSPACE_BASE:/opt/workspace_base \
     -v /var/run/docker.sock:/var/run/docker.sock \