DOC: cookbook update

Author: jreback

doc/source/cookbook.rst

@@ -411,6 +411,9 @@ csv file and creating a store by chunks, with date parsing as well.
 `See here
 <http://stackoverflow.com/questions/16110252/need-to-compare-very-large-files-around-1-5gb-in-python/16110391#16110391>`__
 
+`Creating a store chunk-by-chunk from a csv file
+<http://stackoverflow.com/questions/20428355/appending-column-to-frame-of-hdf-file-in-pandas/20428786#20428786>`__
+
 `Appending to a store, while creating a unique index
 <http://stackoverflow.com/questions/16997048/how-does-one-append-large-amounts-of-data-to-a-pandas-hdfstore-and-get-a-natural/16999397#16999397>`__