Log Message:
Update to ipynb-

0.2 -- 2022-01-11
* Make MimeAttachments a newtype, and export it [API change]. Derive
  ToJSON, ToEncoding using generics for deterministic field order.
* Add Ord instance for MimeBundle and MimeData. [API change]
* Derive ToJSON for MimeBundle, with a deterministic order of keys.
* Add ToJSON instance for MimeData [API change].
* Make JSONMeta a newtype and export it [API change]. Derive ToJSON with a
  deterministic order of keys.
* Add cellId field to Cell (#2). [API change] Needed for Nb4.5+.

0.1.0.2 -- 2020-10-23
* Changes for aeson 2 compatibility.
* Simplified round trip test to avoid use of aeson-diff, which doesn't work
  with aeson 2.