docs: add expo project example

[dmi3y]

Adding working example of Expo repo using release-please.

• Make sure to open an issue as a bug/issue before writing your code! That way we can discuss the change, evaluate designs, and agree on the general idea
• Ensure the tests and linter pass
• Code coverage does not decrease (if any source code was changed)
• Appropriate docs were updated (if necessary)

Fixes #1795 🦕

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docs: add expo project example
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