Plotting gallery examples

[Seth-Rothschild]

• Henchman version: 0.0.3

Description

Some examples at https://henchman.featurelabs.com/plotting_gallery.html could stand to be updated. Namely:

• the timeseries gif doesn't match the result because of changes to the underlying data
• missing a dendrogram gif and example
• missing examples of f1 and roc_auc