There is a text "InspectableApp usage:" which is okay when the usage of the InspectableApp class is being explained, but then below that we have an explanation of the InspectionMixin class and the text "InspectableApp usage:" repeats.
Please fix the second occurence of the text "InspectableApp usage:" to "InspectionMixin usage:".
One would need to know what you would like to fix?
Anyhow I think by now you know that a patch is the way to get things done - and if it is for Phoenix then you should propose and discuss it on the dev list and not on this one.