Change WithNotes to withNotes in using-addons docs

[zgreen]

Issue: an example in the using-addons docs throws a withNotes is not defined error, because of a capitalization error.

What I did

Fixed a docs capitalization typo.

[codecov]

Codecov Report

Merging #3530 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3530   +/-   ##
=======================================
  Coverage   37.61%   37.61%           
=======================================
  Files         459      459           
  Lines       10377    10377           
  Branches      928      930    +2     
=======================================
  Hits         3903     3903           
+ Misses       5932     5896   -36     
- Partials      542      578   +36

Impacted Files	Coverage Δ
...-native/src/preview/components/OnDeviceUI/index.js	0% <0%> (ø)	⬆️
app/react-native/src/bin/storybook.js	0% <0%> (ø)	⬆️
lib/ui/src/modules/shortcuts/actions/shortcuts.js	18.84% <0%> (ø)	⬆️
addons/knobs/src/mithril/WrapStory.js	0% <0%> (ø)	⬆️
lib/ui/src/modules/ui/libs/hierarchy.js	49.03% <0%> (ø)	⬆️
lib/core/src/client/preview/reducer.js	37.5% <0%> (ø)	⬆️
...ons/actions/src/lib/types/object/configureDepth.js	62.5% <0%> (ø)	⬆️
...react-native/src/manager/components/PreviewHelp.js	0% <0%> (ø)	⬆️
lib/ui/src/modules/api/configs/init_api.js	40.42% <0%> (ø)	⬆️
lib/ui/src/libs/withLifecycleDecorator.js	18.91% <0%> (ø)	⬆️
... and 58 more

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