* Update result.md
Adding a speaker note that `Result` documentation is a recommended read.
* Adding a note why `Result` encourages error checking.
* Wordsmithing
Co-authored-by: Andrew Walbran <qwandor@google.com>
As far as I understand, the example with the `anyhow` example
does not use its special `IoError` anymore, unlike the previous
example with just `thiserror`.
I think this should be made clear. I considered just adding a
`// Now unused` comment, but I think ti's clearer to just remove
the unused code.
