Add to What's new

Author: gshiba

doc/source/whatsnew/v0.23.5.txt

@@ -52,3 +52,5 @@ Bug Fixes
 **I/O**
 
 - Bug in :func:`read_csv` that caused it to raise ``OverflowError`` when trying to use 'inf' as ``na_value`` with integer index column (:issue:`17128`)
+- Bug in :func:`to_string(index=False)` that broke column alignment (:issue:`16839`, :issue:`13032`)
+-