The word `document's` is misspelled as `docuement's` in notebook

[eecavanna]

This line contains the typo:

nmdc-runtime/docs/nb/bulk_validation_referential_integrity_check.ipynb

Line 210 in c7f1331

"The `alldocs` collection associates each database document's `id` with not only its class (via that document's `type` field) but also with all ancestors of the docuement's class.\n",

This misspelling was reported by a spellchecker (under construction) in the docs repo.

[eecavanna]

Fixed in commit 82d95c1 locally.