DOC: Adding whatsnew for 1.5.2 and clean up of whatsnew for 1.5.0 and 1.5.1 (#49179)

* DOC: Adding whatsnew for 1.5.2 and clean up of whatsnew for 1.5.0 and 1.5.1

* Add v1.5.2 to whatsnew toctree

Author: datapythonista

doc/source/whatsnew/index.rst

@@ -24,6 +24,7 @@ Version 1.5
 .. toctree::
    :maxdepth: 2
 
+   v1.5.2
    v1.5.1
    v1.5.0
 

doc/source/whatsnew/v1.5.0.rst

@@ -1246,4 +1246,4 @@ Other
 Contributors
 ~~~~~~~~~~~~
 
-.. contributors:: v1.4.4..v1.5.0|HEAD
+.. contributors:: v1.4.4..v1.5.0

doc/source/whatsnew/v1.5.1.rst

@@ -1,6 +1,6 @@
 .. _whatsnew_151:
 
-What's new in 1.5.1 (October ??, 2022)
+What's new in 1.5.1 (October 19, 2022)
 --------------------------------------
 
 These are the changes in pandas 1.5.1. See :ref:`release` for a full changelog
@@ -111,12 +111,12 @@ Bug fixes
 Other
 ~~~~~
 - Avoid showing deprecated signatures when introspecting functions with warnings about arguments becoming keyword-only (:issue:`48692`)
--
--
 
 .. ---------------------------------------------------------------------------
 
 .. _whatsnew_151.contributors:
 
 Contributors
 ~~~~~~~~~~~~
+
+.. contributors:: v1.5.0..v1.5.1

doc/source/whatsnew/v1.5.2.rst

@@ -0,0 +1,41 @@
+.. _whatsnew_152:
+
+What's new in 1.5.2 (November ??, 2022)
+---------------------------------------
+
+These are the changes in pandas 1.5.2. See :ref:`release` for a full changelog
+including other versions of pandas.
+
+{{ header }}
+
+.. ---------------------------------------------------------------------------
+.. _whatsnew_152.regressions:
+
+Fixed regressions
+~~~~~~~~~~~~~~~~~
+-
+-
+
+.. ---------------------------------------------------------------------------
+.. _whatsnew_152.bug_fixes:
+
+Bug fixes
+~~~~~~~~~
+-
+-
+
+.. ---------------------------------------------------------------------------
+.. _whatsnew_152.other:
+
+Other
+~~~~~
+-
+-
+
+.. ---------------------------------------------------------------------------
+.. _whatsnew_152.contributors:
+
+Contributors
+~~~~~~~~~~~~
+
+.. contributors:: v1.5.1..v1.5.2|HEAD