Update reference to asyncio's add_reader doc

diff --git a/tornado/platform/asyncio.py b/tornado/platform/asyncio.py
index 3fd67dbd89cf3713e3b771b4312e616de85f0ef0..9556da618d84c0990984700884af7e03058d0711 100644 (file)
--- a/tornado/platform/asyncio.py
+++ b/tornado/platform/asyncio.py
@@ -14,9 +14,9 @@ loops.
 
 .. note::
 
-   Tornado requires the `~asyncio.BaseEventLoop.add_reader` family of methods,
-   so it is not compatible with the `~asyncio.ProactorEventLoop` on Windows.
-   Use the `~asyncio.SelectorEventLoop` instead.
+   Tornado requires the `~asyncio.AbstractEventLoop.add_reader` family of
+   methods, so it is not compatible with the `~asyncio.ProactorEventLoop` on
+   Windows. Use the `~asyncio.SelectorEventLoop` instead.
 """
 
 from __future__ import absolute_import, division, print_function, with_statement