Yes I installed Firefox and that lets me to go that webpage. How weird, everything else works normally on Brave expect that iventoy-page. I'm confused.
It's probably an issue of English not being the first language, or of translation. It's obviously a link to Documentation, which is a pretty safe assumption when you see a nav item named Document. You could have confirmed this yourself by simply following the link.
You're right, I'm being judgemental about the English stuff... I think Im just especially suspicious of software that is written by people who clearly have the skills to pwn my machine when the software has access to ring0 and is used to boot and install entire oses. It's a malware gold mine. Even if the project is completely on the level, it's a high value target for adding malware because of the level of control you get over a machine (just like grub or syslinux of course, I'm mainly thinking about iventoy for that point). Plus as an American I'm definitely automatically more suspicious of software from China :/ not great but it's true.