DOC: closes gh6838. Breakout options.rst from basics.rst

closes #6838. 
closes #3104 
Breakout "options" section for docs, heavily using info already in ``basics.rst``. Expands examples, and turns ``describe_options`` into a table.
this does not seem the 'most' frequently used option of the frequently used, as wel as `colheader_justify`. So I would put these more at the end of this section. 
I would personally start with `large_repr` and then `max_columns`/`max_rows`.