Add examples

[gisellerosetta]

A user has requested an example covering more features. There are broader comments about the specific nature of their data layout and it being difficult to use with gptables.

Definition of Done:

• Additional example(s) covering further functionality, such as another example using additional formatting, or one showing how to use another theme.
• Consider an end-to-end example including more data wranging, cleaning, handling long/wide data, and other data prep operations like rounding.