docs/network: fix invalid curl command
Update the example curl command with correct headers and API path
@@ -46,11 +46,10 @@ Before starting the guest, configure the network interface using Firecracker's
API:
```bash
-curl -X PUT \
- --unix-socket /tmp/firecracker.socket \
- http://localhost/network-interfaces/eth0 \
- -H accept:application/json \
- -H content-type:application/json \
+curl --unix-socket /tmp/firecracker.socket -i \
+ -X PUT 'http://localhost/network-interfaces/eth0' \
+ -H 'Accept: application/json' \
+ -H 'Content-Type: application/json' \
-d '{
"iface_id": "eth0",
"guest_mac": "AA:FC:00:00:00:01",
