Typo in lesson 4

[domielias]

Hi, I'm currently doing the lesson 4 and I saw that there's a typo referring to lesson 6 that we calculated the random number but we are in lesson 4. It maybe refer to the lesson 4 that was the introduction of the random number.

This is the link: https://cryptozombies.io/en/lesson/4/chapter/10

I attach a image with the typo: