DOC: Fixing docstring formatting errors in PR08, PR09 in pandas.io
Fixing PR08, PR09 errors in pandas.io:
```
pandas.io.formats.style.Styler.apply: Parameter "func" description should start with a capital letter
pandas.io.formats.style.Styler.apply: Parameter "axis" description should start with a capital letter
pandas.io.formats.style.Styler.apply: Parameter "subset" description should start with a capital letter
pandas.io.formats.style.Styler.apply: Parameter "**kwargs" description should start with a capital letter
pandas.io.formats.style.Styler.applymap: Parameter "func" description should start with a capital letter
pandas.io.formats.style.Styler.applymap: Parameter "subset" description should start with a capital letter
pandas.io.formats.style.Styler.applymap: Parameter "**kwargs" description should start with a capital letter
pandas.io.formats.style.Styler.where: Parameter "cond" description should start with a capital letter
pandas.io.formats.style.Styler.where: Parameter "value" description should start with a capital letter
pandas.io.formats.style.Styler.where: Parameter "other" description should start with a capital letter
pandas.io.formats.style.Styler.where: Parameter "subset" description should start with a capital letter
pandas.io.formats.style.Styler.where: Parameter "**kwargs" description should start with a capital letter
pandas.io.formats.style.Styler.set_properties: Parameter "subset" description should start with a capital letter
pandas.io.formats.style.Styler.set_properties: Parameter "**kwargs" description should start with a capital letter
pandas.io.formats.style.Styler.highlight_max: Parameter "subset" description should start with a capital letter
pandas.io.formats.style.Styler.highlight_max: Parameter "axis" description should start with a capital letter
pandas.io.formats.style.Styler.highlight_min: Parameter "subset" description should start with a capital letter
pandas.io.formats.style.Styler.highlight_min: Parameter "axis" description should start with a capital letter
pandas.io.formats.style.Styler.background_gradient: Parameter "cmap" description should start with a capital letter
pandas.io.formats.style.Styler.background_gradient: Parameter "low" description should start with a capital letter
pandas.io.formats.style.Styler.background_gradient: Parameter "high" description should start with a capital letter
pandas.io.formats.style.Styler.background_gradient: Parameter "axis" description should start with a capital letter
pandas.io.formats.style.Styler.background_gradient: Parameter "subset" description should start with a capital letter
pandas.io.formats.style.Styler.background_gradient: Parameter "text_color_threshold" description should start with a capital letter
pandas.io.formats.style.Styler.bar: Parameter "axis" description should start with a capital letter
pandas.io.formats.style.Styler.use: Parameter "styles" description should start with a capital letter
```