Slight word changes and image updates (#38)

* Update images to the current version

* Changing wording

Slightly changing wording in 2 commands

* Add files via upload

* Add files via upload

* Update README_en-US.md

* Delete CustomWeapon.png

* Add files via upload

* Delete 1-CustomComands.png

* Add files via upload

* Update AvatarStats.json

Source/GrasscutterTools/Resources/en-us/CustomCommands.txt

@@ -12,7 +12,7 @@ Where am I?
 /position
 Set World Level
 /setworldlevel 8
-Set Fetter Level
+Set Friendship Level
 /setfetterlevel 1
 Clear Backpack(ALL)
 /clear all
@@ -42,7 +42,7 @@ Restart Server
 /restart
 Send PM
 /say <player> <message>
-Pull in team
+Force coop with player
 /coop @targetId
 Suicide
 /killcharacter
@@ -53,4 +53,4 @@ List ALL users
 Reload service config
 /reload
 KillAll
-/killall
+/killall