[issue44407] A "Coroutines and Tasks" code example needs "asyncio.run(main())"

Andrei Kulakov added the comment: I think it's clear that the modification of previous example is limited to `main()` because `say_after()` is also omitted. This is very common in Python code examples, - it seems to me this change is not needed. -- nosy: +andrei.avk

[issue44407] A "Coroutines and Tasks" code example needs "asyncio.run(main())"

New submission from Atsushi Sakai : This is very small documentation improvement proposal. In the "Coroutines and Tasks" doc, the code example after "Let’s modify the above example and run two say_after coroutines concurrently:" is missing "asyncio.run(main())" at the end of the code example: