doc: fix IPC file reader/writer docs (#7178)

arrow-ipc/src/reader.rs

@@ -1062,7 +1062,7 @@ impl FileReaderBuilder {
 /// For an example creating Arrays without copying using  memory mapped (`mmap`)
 /// files see the [`zero_copy_ipc`] example.
 ///
-/// [IPC Streaming Format]: https://arrow.apache.org/docs/format/Columnar.html#ipc-streaming-format
+/// [IPC File Format]: https://arrow.apache.org/docs/format/Columnar.html#ipc-file-format
 /// [`zero_copy_ipc`]: https://github.com/apache/arrow-rs/blob/main/arrow/examples/zero_copy_ipc.rs
 pub struct FileReader<R> {
     /// File reader that supports reading and seeking

arrow-ipc/src/writer.rs

@@ -920,11 +920,11 @@ impl DictionaryTracker {
 /// # Example
 /// ```
 /// # use arrow_array::record_batch;
-/// # use arrow_ipc::writer::StreamWriter;
+/// # use arrow_ipc::writer::FileWriter;
 /// # let mut file = vec![]; // mimic a file for the example
 /// let batch = record_batch!(("a", Int32, [1, 2, 3])).unwrap();
 /// // create a new writer, the schema must be known in advance
-/// let mut writer = StreamWriter::try_new(&mut file, &batch.schema()).unwrap();
+/// let mut writer = FileWriter::try_new(&mut file, &batch.schema()).unwrap();
 /// // write each batch to the underlying writer
 /// writer.write(&batch).unwrap();
 /// // When all batches are written, call finish to flush all buffers