"documentation engine" interface tutorial

[gregcaporaso]

A good interface tutorial could be to develop a "documentation engine", that ultimately could be used to generate plugin documentation for all plugins in a distribution, like the current Available Plugins page in the user docs. This would use the sdk to load the PluginManager, and then explore the different functionality to find the available plugins and write documentation of those plugins. Following development of this, I could fork the example interface repository (caporaso-lab/q2docgen?), and make it available to plugin developers for auto-generating their plugin user documentation.