Update doc for zooming image tool

Description

https://github.com/edx/edx-platform/pull/13181 adds keyboard functionality so that learners can use keyboards to zoom.
image-zoom-tool.js

Course teams that currently have a zooming image tool that uses the old JavaScript file can continue using it, because they have downloaded and keep a local version in their course's "Files * Uploads". Course teams that add a new zooming image tool will use the new file.

@clrux: I decided to maintain the current workflow for the image zoom tool, so I removed it from platform and create a separate gist for review. Course authors will continue to download it from files.edx.org and upload it to their course in order to use it. Documentation stays the same, but we'll need to update the filename and add the new file to files.edx.org.

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Assignee

Carol Tong

Reporter

Carol Tong

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