Clarification: "io library" wording may be confusing (std::io is a module) #389
Description
Hello,
While reading Chapter 2 of the Rust Book, I noticed the following wording:
"The io library comes from the standard library, known as std."
For beginners this may be slightly confusing because std::io is technically a module inside the std crate, rather than a separate library.
The actual hierarchy is:
std (crate)
└── io (module)
It might help clarity if the text said something like:
"The io module comes from the standard library crate std."
I understand that the current wording may be intentionally simplified for beginners, but this small clarification could help readers who are trying to understand Rust’s module system.
Thanks for the excellent documentation!
