Update typedoc.json

[linonetwo]

I found this usage works TypeStrong/typedoc#2238 (comment)

And old one not working in pnpm monorepo.

Maybe you should update the example repo and doc.

I mean update this example repo

[Gerrit0]

Ah, yes, the current . works because typedoc recognizes the standard workspaces key in package.json. For some reason, pnpm decided to use a separate pnpm-workspaces.yaml file that typedoc doesn't read. Either will work for npm or yarn workspaces, so I guess in interest of avoiding confusion, this is probably a good change