Requiring `Enhance` about politespace

[jefflembeck]

There is an event listener bound to the document for the enhance event in order to initialize politespace. - https://github.com/filamentgroup/politespace/blob/master/src/politespace-init.js#L28

[zachleat]

We use this event to initialize both when the document first loads and when any new content is included with XMLHTTPRequest (such as with our AjaxInclude plugin). Many Filament Group plugins use this convention.

Please reopen if you have additional questions!

[localjo]

It took me about an hour to figure out why politespace was not working for me. I was unfamiliar with the enhance event convention, and though I found this issue, I was trying to imitate the demo, and I had added a data-enhanced attribute to my input which prevented politespace from initializing. I think it would be useful to mention this in the usage section of the readme, maybe with a link to more info about the convention.

[MattSnowOregonGov]

@josiahsprague THANK YOU. That was super unclear. 👍