updated ACP menu label

public/language/en-GB/admin/menu.json

@@ -39,7 +39,7 @@
 	"section-appearance": "Appearance",
 	"appearance/themes": "Themes",
 	"appearance/skins": "Skins",
-	"appearance/customise": "Custom HTML & CSS",
+	"appearance/customise": "Custom Content (HTML/JS/CSS)",
 
 	"section-extend": "Extend",
 	"extend/plugins": "Plugins",