Updated migration instructions

Author: Bastian Schwarz

MIGRATION.md

@@ -12,6 +12,10 @@ If you use the All class you don't need to do anything.
 The iAll interface was extended with the iWithin interface. If you created your own implementation of iAll you need to implement the iWithin interface as well. 
 If you use the All class you don't need to do anything.
 
+### Info Method
+The iAll interface was extended with the iInfo interface. If you created your own implementation of iAll you need to implement the iInfo interface as well.
+If you use the All class you don't need to do anything.
+
 ## 1.x -> 2.x
 
 The ssh connection string is now part of `\Deployer\Host\Host`. This means the