fix install instructions (#5844)

docs/modules/usage/installation.mdx

@@ -17,7 +17,7 @@ docker run -it --rm --pull=always \
     -e SANDBOX_RUNTIME_CONTAINER_IMAGE=docker.all-hands.dev/all-hands-ai/runtime:0.17-nikolaik \
     -e LOG_ALL_EVENTS=true \
     -v /var/run/docker.sock:/var/run/docker.sock \
-    -v ~/.openhands-state:/home/openhands/.openhands-state \
+    -v ~/.openhands-state:/.openhands-state \
     -p 3000:3000 \
     --add-host host.docker.internal:host-gateway \
     --name openhands-app \