sqwiggle/sqwiggle-api-documentation — pull request #12 by ipalaus (2014-01-27 01:24:36+00:00)
Title: Corrected  the parameter when updating a message

You need to `PUT /messages/:id` with `{"text": "whatever"}` instead of the suggested "message".

I can't confirm about the Ruby gem but probably you need to update that line too.