doc: revisit file.rs docs
///! UnixFS file support.
///!
-///! Most usable for walking UnixFS file trees provided by the `visit::IdleFileVisit` and
-///! `visit::FileVisit` types.
+///! Module provides low-level File tree visitor support and file importing support. Note: The
+///! [`ipfs_unixfs::walk::Walker`] should be used for accessing file content typically.
use crate::pb::ParsingFailed;
use crate::{InvalidCidInLink, Metadata, UnexpectedNodeType};
use std::borrow::Cow;
@@ -10,10 +10,10 @@ use std::fmt;
/// Low level UnixFS file descriptor reader support.
mod reader;
-/// Higher level API for visiting the file tree.
+/// Mid level API for visiting the file tree.
pub mod visit;
-/// Initial version of file adder capable of constructing UnixFs v1 trees
+/// File adder capable of constructing UnixFs v1 trees
pub mod adder;
/// Describes the errors which can happen during a visit or lower level block-by-block walking of
