You could probably use the Sync with External Folder mechanism to make a synced copy of an arbitrary file from the project available online.
But there is no ToC document in the project unless you create one, and one that you create won’t update automatically.
As a writer, I’m not sure what the benefit of such a document would be, though. I’m not interested in sharing my process at that level of detail. I can see wanting to provide an updated outline at regular intervals – every few weeks, say – but showing every false start and change of direction in real time? No.