docs: fix spelling mistake in flate2::zlib::write::ZlibDecoder

Author: CosminPerRam

src/zlib/write.rs

@@ -180,7 +180,7 @@ impl<W: Read + Write> Read for ZlibEncoder<W> {
 /// This structure implements a [`Write`] and will emit a stream of decompressed
 /// data when fed a stream of compressed data.
 ///
-/// After decoding a single member of the ZLIB data this writer will return the number of bytes up to
+/// After decoding a single member of the ZLIB data this writer will return the number of bytes up
 /// to the end of the ZLIB member and subsequent writes will return Ok(0) allowing the caller to
 /// handle any data following the ZLIB member.
 ///