DOC: Fixes flake8 issues in whatsnew v0.13.* pandas-dev#24256

Another attempt to get the conflicts resolved with setup.cfg
Incorporated the requested changes.

Author: Seuss27

doc/source/whatsnew/v0.13.0.rst

@@ -119,11 +119,11 @@ API changes
 
   This prevents doing boolean comparison on *entire* pandas objects, which is inherently ambiguous. These all will raise a ``ValueError``.
 
-  .. code-block:: python
-     :flake8-group: Ignore  # Documentation says this is necessary for mandatory E999 (if df:)
+  .. code-block:: text
 
      >>> if df:
-             ...
+             pass
+
      ValueError: The truth value of a DataFrame is ambiguous.  Use a.empty,
      a.bool(), a.item(), a.any() or a.all().
 
@@ -494,10 +494,10 @@ Enhancements
 
   .. ipython:: python
 
-     from datetime import timedelta
+     import datetime
      td = pd.Series(pd.date_range('20130101', periods=4)) - pd.Series(
          pd.date_range('20121201', periods=4))
-     td[2] += np.timedelta64(timedelta(minutes=5, seconds=3))
+     td[2] += np.timedelta64(datetime.timedelta(minutes=5, seconds=3))
      td[3] = np.nan
      td
 
@@ -528,7 +528,7 @@ Enhancements
   .. ipython:: python
 
      td.fillna(0)
-     td.fillna(timedelta(days=1, seconds=5))
+     td.fillna(datetime.timedelta(days=1, seconds=5))
 
   You can do numeric reduction operations on timedeltas.
 
@@ -838,7 +838,7 @@ Experimental
      # Your Google BigQuery Project ID
      # To find this, see your dashboard:
      # https://console.developers.google.com/iam-admin/projects?authuser=0
-     projectid = xxxxxxxxx;  # noqa F821
+     projectid = 'xxxxxxxxx'
      df = gbq.read_gbq(query, project_id=projectid)
 
      # Use pandas to process and reshape the dataset

doc/source/whatsnew/v0.13.1.rst

@@ -86,13 +86,10 @@ Output Formatting Enhancements
 - The ``ArrayFormatter`` for ``datetime`` and ``timedelta64`` now intelligently
   limit precision based on the values in the array (:issue:`3401`)
 
-  Previously output might look like:::
+  Previously output might look like:
+
+  ..   oode-block:: text
 
-      >>> df = pd.DataFrame([pd.Timestamp('20010101'),
-                            pd.Timestamp('20040601')], columns=['age'])
-      >>> df['today'] = pd.Timestamp('20130419')
-      >>> df['diff'] = df['today'] - df['age']
-      >>> df
         age                 today               diff
       0 2001-01-01 00:00:00 2013-04-19 00:00:00 4491 days, 00:00:00
       1 2004-06-01 00:00:00 2013-04-19 00:00:00 3244 days, 00:00:00

setup.cfg

@@ -45,8 +45,6 @@ ignore = E402,  # module level import not at top of file
          E703,  # statement ends with a semicolon
 
 exclude =
-    doc/source/whatsnew/v0.13.0.rst
-    doc/source/whatsnew/v0.13.1.rst
     doc/source/whatsnew/v0.15.0.rst
     doc/source/whatsnew/v0.15.1.rst
     doc/source/whatsnew/v0.15.2.rst