Update to 1.13.

Installation.md

@@ -31,6 +31,9 @@ https://github.com/IntellectualSites/PlotSquared/wiki/Commands
 #### Optimize your world
 [See here](https://github.com/IntellectualCrafters/PlotSquared/wiki/World-reduction)
 
+## Updating to 1.13
+If you are updating to 1.13 you might have to manually change some things. PlotSquared will attempt to convert your `worlds.yml` configuration file on startup. After that has been done, you should review the file to see that everything has converted properly. PlotSquared will not update your schematics, so you will have to do that manually. The new version of PlotSquared introduced a format for configuring blocks for the different plot components. You can read more about that [here](https://github.com/IntellectualCrafters/PlotSquared/wiki/BlockBucket). This change allows you to use multiple block types in every plot component. Please note that PlotSquared for 1.13 only supports Bukkit at the moment. PlotSquared now depends on [WorldEdit](https://dev.bukkit.org/projects/worldedit/files), so you will need to have that installed on the server in order to use PlotSquared.
+
 ## World Creation
 #### [Tutorial: Custom Augmented](https://github.com/IntellectualCrafters/PlotSquared/wiki/TerrainControl)
  - Tutorial for using a non PlotSquared generator such as TerrainControl  
@@ -60,7 +63,11 @@ It will also accept several arguments:
 
 Examples:
  - `/mv create <world> normal -g PlotSquared:size=64`
+Up to 1.12:
  - `/mv create <world> normal -g PlotSquared:h=64,main=5:2`
+1.13+:
+ - `/mv create <world> normal -g PlotSquared:h=64,main=oak_planks:50,dirt:25,stone:25` 
+    (50% oak planks, 25% dirt and 25% stone)
 
 #### Option 2: Creating a world with Multiworld:
 `/mw create <world> plugin:PlotSquared`