DOC: Update broken link in cookbook.rst pandas-dev#15605

closes pandas-dev#15605

Author: Lorenzo Cestaro <cestaro.lorenzo@gmail.com>

Closes pandas-dev#15720 from LorenzoCestaro/fix-15605 and squashes the following commits:

006eefa [Lorenzo Cestaro] DOC: Update broken link in cookbook.rst pandas-dev#15605

Author: lorenzocestaro

doc/source/cookbook.rst

@@ -905,7 +905,7 @@ CSV
 
 The :ref:`CSV <io.read_csv_table>` docs
 
-`read_csv in action <http://wesmckinney.com/blog/?p=635>`__
+`read_csv in action <http://wesmckinney.com/blog/update-on-upcoming-pandas-v0-10-new-file-parser-other-performance-wins/>`__
 
 `appending to a csv
 <http://stackoverflow.com/questions/17134942/pandas-dataframe-output-end-of-csv>`__