[Chapel Merge] update chapelio docs

Branch: refs/heads/main
Revision: 126e583
Author: jeremiah-corrado
Link: update chapelio docs by lucaferranti · Pull Request #19974 · chapel-lang/chapel · GitHub
Log Message:

Merge pull request #19974 from lucaferranti/lf-chapelio-docs

update chapelio docs

[Reviewed by @jeremiah-corrado]

Modified Files:
M modules/standard/ChapelIO.chpl

Compare: https://github.com/chapel-lang/chapel/compare/b03caba95715...126e5836dc2b