DOC: fix typos in RELEASE.rst

Author: y-p

RELEASE.rst

@@ -47,7 +47,7 @@ pandas 0.11.0
 
 **Improvements to existing features**
 
-  - Improved performance of dv.to_csv() by up to 10x in some cases. (GH3059_)
+  - Improved performance of df.to_csv() by up to 10x in some cases. (GH3059_)
   - added ``blocks`` attribute to DataFrames, to return a dict of dtypes to
     homogeneously dtyped DataFrames
   - added keyword ``convert_numeric`` to ``convert_objects()`` to try to
@@ -249,7 +249,7 @@ pandas 0.11.0
 .. _GH3053: https://github.com/pydata/pandas/issues/3053
 .. _GH3076: https://github.com/pydata/pandas/issues/3076
 .. _GH3063: https://github.com/pydata/pandas/issues/3063
-.. _GH3059: https://github.com/pydata/pandas/issues/3039
+.. _GH3059: https://github.com/pydata/pandas/issues/3059
 
 pandas 0.10.1
 =============

doc/source/v0.11.0.txt

@@ -229,7 +229,7 @@ API changes
 Enhancements
 ~~~~~~~~~~~~
 
-  - Improved performance of dv.to_csv() by up to 10x in some cases. (GH3059_)
+  - Improved performance of df.to_csv() by up to 10x in some cases. (GH3059_)
 
   - Numexpr is now a :ref:`Recommended Dependencies <install.recommended_dependencies>`, to accelerate certain
     types of numerical and boolean operations