message: Update notes.
diff: </stability>
  <license uri="http://www.apache.org/licenses/LICENSE-2.0.html">Apache2.0</license>
  <notes>
  - - Support ob functions in coroutine
  - - Better Channel
  - - Fixed all known bugs about Client
  - - Fixed all compiler warnings in PHP73
  + - Fixed `Channel`core dump when high concurrency
  + - Add `Channel->pop(float $timeout)`, unlimited default
  + - Remove`Channel->select`
  + - Fixed call `Co\Client->close`memory error
  + - `WebSocket\Server` support disconnect with code and reason
  + - Improve `Coroutine\Http2\Client`:
  + - Rename `swoole_http2_response` properties to plural form.
  + - Add Http2 `WINDOW_SIZE_UPDATE` to solve dead lock, unlimited default
  + - Add `Client->recv(float $timeout)`, unlimited default
  + - Add `cookies` and `set_cookie_headers` properties
  + - Fixed all memory errors and invalid properties error
  + - Fixed core dump when send without recv
  </notes>
  <contents>
  <dir name="/">
  