[streams] Update FAQ with some extra answers (#365)

- Explain when streams are appropriate
- Explain how streams work with any chunk type
- Relate readable stream to other async plural constructs
- Compare with Node.js streams

Closes #360. Closes #126.
You can view, comment on, or merge this pull request online at:

  https://github.com/whatwg/streams/pull/365

-- Commit Summary --

  * Update FAQ with some extra answers

-- File Changes --

    M FAQ.md (75)

-- Patch Links --

https://github.com/whatwg/streams/pull/365.patch
https://github.com/whatwg/streams/pull/365.diff

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Reply to this email directly or view it on GitHub:
https://github.com/whatwg/streams/pull/365