fix typo in doc string
diff --git a/Lib/io.py b/Lib/io.py
index fa103dd..fe03bf2 100644
--- a/Lib/io.py
+++ b/Lib/io.py
@@ -228,8 +228,8 @@
This does not define read(), readinto() and write(), nor
readline() and friends, since their signatures vary per layer.
- Not that calling any method (even inquiries) on a closed file is
- undefined. Implementations may raise IOError in this case.
+ Note that calling any method (even inquiries) on a closed file is
+ undefined. Implementations may raise IOError in this case.
"""
### Internal ###