From a personal point of view, I'd say that both "1.4 Contributing tothis document (i.e live-manual)" and especially "1.4.1 Appliying changes (i.e to this document == live-manual) are quite self-explanatory.
But anyway, do not take my word for it. If you think that making any necessary changes would benefit us all, please feel free to contribute to the documentation. Anyone can do it (as explained in live-manual itself) and please, also pay attention to the follow-up chapter which is "1.4.2 Translation"