Update README.md

Author: danyboss

README.md

@@ -1,5 +1,6 @@
 # Grand Hero Farmer
 
+![preview](https://raw.githubusercontent.com/DanyBoss/GrandHeroFarmer/master/preview.png)
 Grand Hero Farmer is a tool to farm Feathers on the mobile game 'Fire Emblem Heroes'. This works because the game recently removed all Stamina costs on a game mode called Grand Hero Battle and in doing such it allows users to keep consistently repeating these maps to get Feathers.
 
 This tool take some precations to not be "detected" as a bot, such as randomly changing coordenates and changing time delays, it is pretty much impossible for Nintendo to detect this as a bot.
@@ -30,4 +31,4 @@ The coordenates can be left alone for farming GHB but if you want to change the
 
 ## Disclaimer
 
-While it is highly improbable Nintendo can implement some future version of the Game to detect 'ADB' clicks and in doing such can detect the tool. Don't blame me or anyone if they do that (just fyi I do run this tool to farm on my own personal account).
+While it is highly improbable Nintendo can implement some future version of the Game to detect 'ADB' clicks and in doing such can detect the tool. Don't blame me or anyone if they do that (just fyi I do run this tool to farm on my own personal account).