Organize the comments a bit
Add run_order
Add a word of warning about how generators are considered new
Add gold ore example
Add coal ore example
Add diamond ore example
Add lapis ore example

Note: Because of the way the y value is chosen for lapis, versus all other ores, this does not reproduce the exact same distribution as vanilla.  It should, however, be good enough in almost all cases.
Add redstone ore example
Add dirt example
Add gravel example
Add run_order values that represent the order in vanilla generation