DOC: Clean up docs for io.data.Options.

[davidastephens]

Per conversation on #5602, adjusted some of the docs.
Removed from release.rst, changed example strike price for AAPL, fixed backticks.

[davidastephens]

@jorisvandenbossche
@jreback

[jreback]

@jorisvandenbossche wondering if should somehow limit the columns so the display is not so wide...

?

[davidastephens]

We could do that - maybe cut it off at volume so it doesn't wrap?

The downside being that you wouldn't see all the available information that is downloaded - ie: open int, underlying price, quote time, etc. We could add that detail in the text.

[jreback]

the doc-string is pretty comprehensive, this is just an example

[davidastephens]

Good point. Changed it to show only to volume.

[jorisvandenbossche]

@jreback we could set pd.options.display.max_columns to a lower number, but otherwise, for the docs maybe better the user sees the same thing when they try it out themselves.

[jreback]

no that's ok, only thing may want to revist the screen width in general in the docs? shouldn't it be larger?

[jorisvandenbossche]

We have had that discussion before #4165, I think in the first place we should make our examples so that the output is not too wide.

[jorisvandenbossche]

@dstephens99 There is now an indexing error: http://pandas-docs.github.io/pandas-docs-travis/remote_data.html#yahoo-finance-options