doc: clarify unshift EOF

Author: ronag

doc/api/stream.md

@@ -1289,9 +1289,9 @@ changes:
   `Buffer` encoding, such as `'utf8'` or `'ascii'`.
 
 Passing `chunk` as `null` signals the end of the stream (EOF) and behaves the
-same as `readable.push(null)`, after which no more data can be written. Note
-that the EOF signal is put at the end of the buffer and any buffered data will
-still be flushed.
+same as `readable.push(null)`, after which no more data can be written. The EOF
+signal is put at the end of the buffer and any buffered data will still be
+flushed.
 
 The `readable.unshift()` method pushes a chunk of data back into the internal
 buffer. This is useful in certain situations where a stream is being consumed by