docs: Clarify the status of thumbor-based thumbnailing.

This design document was confusing as it didn't clarify that this
wasn't ready for production use.
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Tim Abbott 2020-08-04 14:49:46 -07:00
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# Thumbnailing
Note: Thumbnailing is an experimental feature. While it is
implemented in Zulip, due to issues with the upstream Thumbor project
being almost unmaintained, it is not recommended for production use.
This is the design document for how thumbnailing will work in Zulip,
assuming Thumbor recovers as a project or we replace it with a similar
alternative.
There are two key places one would naturally want to thumbnail images
in a team chat application like Zulip: