doc: remove re-exports section from crate root

Making the paths to the types private forces rustdoc to render
the structs inline in the crate root.
This is simpler to see when first reading the API doc

src/read.rs

@@ -32,6 +32,9 @@ mod ffi {
     pub const S_IFREG: u32 = 0o0100000;
 }
 
+// Put the struct declaration in a private module to convince rustdoc to display ZipArchive nicely
+pub(crate) mod zip_archive {
+
     /// ZIP archive reader
     ///
     /// ```no_run
@@ -50,13 +53,14 @@ mod ffi {
     /// ```
     #[derive(Clone, Debug)]
     pub struct ZipArchive<R> {
-    reader: R,
-    files: Vec<ZipFileData>,
-    names_map: HashMap<String, usize>,
-    offset: u64,
-    comment: Vec<u8>,
+        pub(super) reader: R,
+        pub(super) files: Vec<super::ZipFileData>,
+        pub(super) names_map: super::HashMap<String, usize>,
+        pub(super) offset: u64,
+        pub(super) comment: Vec<u8>,
     }
-
+}
+pub use zip_archive::ZipArchive;
 enum CryptoReader<'a> {
     Plaintext(io::Take<&'a mut dyn Read>),
     ZipCrypto(ZipCryptoReaderValid<io::Take<&'a mut dyn Read>>),

src/write.rs

@@ -42,7 +42,9 @@ enum GenericZipWriter<W: Write + io::Seek> {
     #[cfg(feature = "zstd")]
     Zstd(ZstdEncoder<'static, W>),
 }
-
+// Put the struct declaration in a private module to convince rustdoc to display ZipWriter nicely
+pub(crate) mod zip_writer {
+    use super::*;
     /// ZIP archive generator
     ///
     /// Handles the bookkeeping involved in building an archive, and provides an
@@ -72,15 +74,17 @@ enum GenericZipWriter<W: Write + io::Seek> {
     /// # doit().unwrap();
     /// ```
     pub struct ZipWriter<W: Write + io::Seek> {
-    inner: GenericZipWriter<W>,
-    files: Vec<ZipFileData>,
-    stats: ZipWriterStats,
-    writing_to_file: bool,
-    writing_to_extra_field: bool,
-    writing_to_central_extra_field_only: bool,
-    writing_raw: bool,
-    comment: Vec<u8>,
+        pub(super) inner: GenericZipWriter<W>,
+        pub(super) files: Vec<ZipFileData>,
+        pub(super) stats: ZipWriterStats,
+        pub(super) writing_to_file: bool,
+        pub(super) writing_to_extra_field: bool,
+        pub(super) writing_to_central_extra_field_only: bool,
+        pub(super) writing_raw: bool,
+        pub(super) comment: Vec<u8>,
     }
+}
+pub use zip_writer::ZipWriter;
 
 #[derive(Default)]
 struct ZipWriterStats {