Updating documentation for table creation

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+Table Creation
+==============
+
+``cmd2`` provides a table creation class called
+:attr:`cmd2.table_creator.TableCreator`. This class handles ANSI style
+sequences and characters with display widths greater than 1 when performing
+width calculations. It was designed with the ability to build tables one row at
+a time. This helps when you have large data sets that you don't want to hold
+in memory or when you receive portions of the data set incrementally.
+
+``TableCreator`` has one public method:
+:attr:`cmd2.table_creator.TableCreator.generate_row()`
+
+This function and the :attr:`cmd2.table_creator.Column`
+class provide all features needed to build tables with headers, borders,
+colors, horizontal and vertical alignment, and wrapped text. However, it's
+generally easier to inherit from this class and implement a more granular API
+rather than use ``TableCreator`` directly.
+
+The following table classes build upon ``TableCreator`` and are provided in
+the :ref:`api/table_creator:cmd2.table_creator` module. They can be used as is
+or as examples for how to build your own table classes.
+
+:attr:`cmd2.table_creator.SimpleTable` - Implementation of TableCreator which
+generates a borderless table with an optional divider row after the header.
+This class can be used to create the whole table at once or one row at a time.
+
+:attr:`cmd2.table_creator.BorderedTable` - Implementation of TableCreator which
+generates a table with borders around the table and between rows. Borders
+between columns can also be toggled. This class can be used to create the whole
+table at once or one row at a time.
+
+:attr:`cmd2.table_creator.AlternatingTable` - Implementation of BorderedTable
+which uses background colors to distinguish between rows instead of row border
+lines. This class can be used to create the whole table at once or one row at a
+time.
+
+See the table_creation_ example to see these classes in use
+
+.. _table_creation: https://github.com/python-cmd2/cmd2/blob/master/examples/table_creation.py
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