DOC: start fixing warnings

Author: TomAugspurger

doc/source/whatsnew/v0.11.0.txt

@@ -40,7 +40,7 @@ three types of multi-axis indexing.
   - A slice object with ints ``1:7``
   - A boolean array
 
-  See more at :ref:`Selection by Position <indexing.integer>`
+  See more at Selection by Position indexing.integer
 
 - ``.ix`` supports mixed integer and label based access. It is primarily label based, but will fallback to integer positional access. ``.ix`` is the most general and will support
   any of the inputs to ``.loc`` and ``.iloc``, as well as support for floating point label schemes. ``.ix`` is especially useful when dealing with mixed positional and label
@@ -50,7 +50,7 @@ three types of multi-axis indexing.
   is interpreted as position based or label based, it's usually better to be
   explicit and use ``.iloc`` or ``.loc``.
 
-  See more at :ref:`Advanced Indexing <advanced>` and :ref:`Advanced Hierarchical <advanced.advanced_hierarchical>`.
+  See more at Advanced Indexing and :ref:`Advanced Hierarchical <advanced.advanced_hierarchical>`.
 
 
 Selection Deprecations

pandas/io/formats/style.py

@@ -982,7 +982,9 @@ def bar(self, subset=None, axis=0, color='#d65f5f', width=100,
         """
         Color the background ``color`` proptional to the values in each column.
         Excludes non-numeric data by default.
+
         .. versionadded:: 0.17.1
+
         Parameters
         ----------
         subset: IndexSlice, default None