Idk what to tell you if the “welcome to Linux from scratch” header wasn’t enough of a hint

I thought the parent comment was missing something obvious too but if you click the top link in that section, it’s a page describing LFS but without linking to its content. Then I clicked the “Read online” link on the menu on the left, but the top links are errata and security advisories and then the main link. Not the worst navigation I’ve seen but the parent comment does have a point.