bug #10375 [Docs] Update "Customizing State Machine" (AdamKasp)
bug #10375 [Docs] Update "Customizing State Machine" (AdamKasp)

This PR was merged into the 1.3 branch.

Discussion
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| Q               | A
| --------------- | -----
| Branch?         | 1.3
| Bug fix?        | yes
| New feature?    | no
| BC breaks?      | no
| Deprecations?   | no
| License         | MIT

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Commits
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6c0499dd7a5e9dd9be52f01d2e467166f32e1f5f Update customization state-machine docs
db1abf8a60cf36208659b7de89951613cd31a2ba Fix to updating state machine docs

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