Update README

Author: ljyloo

README.md

@@ -1,7 +1,7 @@
 # LevelDb2Avnil
 A map converter for Minecraft: Pocket Edition
 
-Map converter for Minecraft:Pocket Edition, from format "LevelDB" to "Anvil".
+Map converter for Minecraft:Pocket Edition, from format "LevelDB" to "Anvil", or from format "Anvil" to "LevelDB".
 
 This program uses leveldb by tinfoiled. See lisense here https://github.com/ljyloo/leveldb
 
@@ -11,14 +11,16 @@ https://mojang.com/2012/02/new-minecraft-map-format-anvil/
 
 ## Usage:
 
-`java -jar Converter.jar <import folder> <export folder>`
+`java -jar Converter.jar <import folder> <export folder> <type>`
 
 ## Where:
 
 `<import folder> The full path to the folder containing Minecraft:Pocket Edition world`
 
 `<export folder> The full path to the folder which you want to export`
 
+`<type> 0 represents from "LevelDB" to "Anvil", 1 represents from "Anvil" to "LevelDB"`
+
 ## Example:
 
-`java -jar Converter.jar /home/ljyloo/import /home/ljyloo/export`
+`java -jar Converter.jar /home/ljyloo/LevelDB /home/ljyloo/Anvil 0`