Several hosted websites under base url in seperate subdirectory

I have several websites I have created, and I host them.

Each one in a subdirectory off my site https://www.basesite.com/hosted1 https://www.basesite.com/hosted2 https://www.basesite.com/hosted3 etc. each of them has their own url, but I’ve forgotten how to make it so their url shows up for each of the different websites.

Anyone have the link? Thanks…

I saw this, where else can I find info..
https://codex.www.ads-software.com/Giving_WordPress_Its_Own_Directory