Add /libsdisguises help

src/main/java/me/libraryaddict/disguise/commands/libsdisguises/LDJson.java

@@ -123,8 +123,13 @@ public class LDJson implements LDCommand {
         sender.spigot().sendMessage(builder.create());
     }
 
+    @Override
+    public boolean hasPermission(CommandSender sender) {
+        return sender.hasPermission(getPermission());
+    }
+
     @Override
     public LibsMsg getHelp() {
-        return null;
+        return LibsMsg.LD_COMMAND_JSON;
     }
 }