DOC: Upload and Download Data in Bulk

[kelshmo]

Location of the Documentation

https://docs.synapse.org/articles/uploading_in_bulk.html or
https://docs.synapse.org/articles/views.html

Problem

Instructions to download data from versioned views (e.g. freezes) (both through the UI and programmatically) is missing.

Suggested Fix

The steps mirror the steps in the "in-practice" article here; but the user would execute these steps from Synapse, without navigating to the portal.