revert unrelated change to not-used 1.0.1 release notes

ChrisRobo · ChrisRobo · commit f5521e8bf52e · 2020-02-02T20:29:05.000-08:00
diff --git a/doc/source/whatsnew/v1.0.1.rst b/doc/source/whatsnew/v1.0.1.rst
@@ -92,6 +92,7 @@ Missing
 MultiIndex
 ^^^^^^^^^^
 
+-
 -
 
 I/O
