Merge pull request #6086 from jorisvandenbossche/doc-warnings

DOC: suppress warnings with okwarning in whatsnew

Author: jorisvandenbossche

doc/source/v0.10.1.txt

@@ -66,6 +66,7 @@ perform queries on a table, by passing a list to ``data_columns``
 Retrieving unique values in an indexable or data column.
 
 .. ipython:: python
+   :okwarning:
 
    import warnings
    with warnings.catch_warnings():

doc/source/v0.12.0.txt

@@ -186,6 +186,7 @@ I/O Enhancements
     You can use ``pd.read_html()`` to read the output from ``DataFrame.to_html()`` like so
 
     .. ipython :: python
+       :okwarning:
 
         df = DataFrame({'a': range(3), 'b': list('abc')})
         print(df)
@@ -252,6 +253,7 @@ I/O Enhancements
     store when iteration is finished. This is only for *tables*
 
     .. ipython:: python
+       :okwarning:
 
          path = 'store_iterator.h5'
          DataFrame(randn(10,2)).to_hdf(path,'df',table=True)

doc/source/v0.13.0.txt

@@ -149,6 +149,7 @@ API changes
   The following warning / exception will show if this is attempted.
 
   .. ipython:: python
+     :okwarning:
 
      dfc.loc[0]['A'] = 1111