Change docstrings for color and align

Author: jmarrec

pandas/formats/style.py

@@ -983,15 +983,15 @@ def bar(self, subset=None, align='left', axis=0,
         subset: IndexSlice, default None
             a valid slice for ``data`` to limit the style application to
         axis: int
-        color: str (for align='left') or 2-tuple/list (for align='zero', 'mid')
+        color: str or 2-tuple/list
             If a str is passed, the color is the same for both
             negative and positive numbers. If 2-tuple/list is used, the
             first element is the color_negative and the second is the
             color_positive (eg: ['#d65f5f', '#5fba7d'])
         width: float
             A number between 0 or 100. The largest value will cover ``width``
             percent of the cell's width
-        align : str, default 'left'
+        align : {'left', 'zero',' mid'}
             
             .. versionadded:: 0.20.0