Possible typo / mistake on DSA Mini Tutorial Page

Forum members,

I was reviewing the DSA Mini Tutorial (URL follows hereupon) and became confused within section 6, where it states under "As an example let's assume a setup where:" and then goes on to state VLANS 10,20,30 are used. Then the 3rd line thereunder states "port lan3 is only for untagged VLAN 1", but there is no reference to VLAN 1, should that really say "VLAN 10" instead of "VLAN 1"?

https://openwrt.org/docs/guide-user/network/dsa/dsa-mini-tutorial#security_considerations_with_vlans

Thanks,
Stuart