rust

Edit "Composing and Distributing Components" section for clarity #244

Job	Run time
build (component-model/examples/tutorial/adder, component)	17s
build (component-model/examples/tutorial/command, component)	22s
build (component-model/examples/tutorial/calculator, component)	17s
build (component-model/examples/example-host)	2m 3s
	2m 59s

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