If you installed it to the directory "wiki" on the the "yourdomain.tld" site, then you would browse to it with a browser (it's not really a "page" in the classic sense) at:
Of course, you can name that directory anything you want, and it would work the same way.
You could also create a subdomain of/for your site, and install it there. If you installed it into the "base" directory of "wiki.yourdomain.tld" (after adding the subdomain, just select that in the oneclick install pull down field, and leave the "directory" area blank), it would be reachable at:
Of course, you can name the subdomain (almost) anything you want, and it would work the same way.,