Revision History is incomplete/wrong

[pcm1k]

In https://github.com/SpongePowered/Schematic-Specification/blob/master/versions/schematic-3.md it says:

Rename Palette to BlockPalette

However, there is no mention of BlockPalette elsewhere. Instead there is a "Block Container" and a "Biome Container", which each contain a Palette entry of their own. There is an independent Palette entry in version 2, however.