docs: improve example app usability (#514) #109

Job	Run time
build-and-test / test	2s
build-and-test / check-java-formatting	12s
build-and-test / build-android	4m 9s
build-and-test / build-ios	6m 52s
build-and-test / build-library	18s
build-and-test / lint	25s
build-and-test / check-objc-formatting	18s
release-please	13s
publish	0s
	12m 29s

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