Update vcmi-1.6.json

Author: GeorgeK1ng

vcmi-1.6.json

@@ -291,7 +291,8 @@
 		"screenshots" : [
 			"https://raw.githubusercontent.com/vcmi-mods/haven-town/vcmi-1.6/screenshots/screen1.png",
 			"https://raw.githubusercontent.com/vcmi-mods/haven-town/vcmi-1.6/screenshots/screen2.png",
-			"https://raw.githubusercontent.com/vcmi-mods/haven-town/vcmi-1.6/screenshots/screen3.png"
+			"https://raw.githubusercontent.com/vcmi-mods/haven-town/vcmi-1.6/screenshots/screen3.png",
+			"https://raw.githubusercontent.com/vcmi-mods/haven-town/vcmi-1.6/screenshots/screen4.png"
 		],
 		"downloadSize" : 14.681
 	},