docs: clean rustdoc — fix 5 unresolved intra-doc links

`cargo doc --no-deps` was generating 5 warnings:

  - `[`File`]` in src/area.rs:99 — File is std::fs::File but
    the bare name doesn't resolve from this scope. Fully
    qualified.
  - `[`&std::fs::File`]` and `[`&tempfile::NamedTempFile`]` in
    bytes.rs:233 + bytes.rs:255 — intra-doc links can't target
    reference types. Stripped the `&` prefix; both targets
    resolve via the dependency tree (memmap2 + tempfile both
    in Cargo.toml).

`cargo doc --no-deps` now warning-free.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: somethingelseentirely

src/area.rs

@@ -96,7 +96,7 @@ impl ByteArea {
         Ok(Bytes::from_source(mmap))
     }
 
-    /// Persist the temporary area file to `path` and return the underlying [`File`].
+    /// Persist the temporary area file to `path` and return the underlying [`std::fs::File`].
     pub fn persist<P: AsRef<std::path::Path>>(self, path: P) -> io::Result<std::fs::File> {
         self.file.persist(path).map_err(Into::into)
     }

src/bytes.rs

@@ -230,7 +230,7 @@ impl Bytes {
     /// to remain open after mapping.
     ///
     /// The argument may be any type that implements [`memmap2::MmapAsRawDesc`],
-    /// such as [`&std::fs::File`] or [`&tempfile::NamedTempFile`].
+    /// such as [`std::fs::File`] or [`tempfile::NamedTempFile`].
     #[cfg(feature = "mmap")]
     pub unsafe fn map_file<F>(file: F) -> std::io::Result<Self>
     where
@@ -252,7 +252,7 @@ impl Bytes {
     /// platform's alignment requirements (typically page size).
     ///
     /// The argument may be any type that implements [`memmap2::MmapAsRawDesc`],
-    /// such as [`&std::fs::File`] or [`&tempfile::NamedTempFile`].
+    /// such as [`std::fs::File`] or [`tempfile::NamedTempFile`].
     #[cfg(feature = "mmap")]
     pub unsafe fn map_file_region<F>(file: F, offset: u64, len: usize) -> std::io::Result<Self>
     where