Update Modification.md

MR200v4/Modification.md

@@ -1,12 +1,12 @@
 Add bold parts:
 
-target/linux/ramips/base-files/etc/board.d/01_leds
+file: target/linux/ramips/base-files/etc/board.d/01_leds
 
 mr200)\
  ucidef_set_led_netdev "lan" "lan" "$boardname:white:lan" "eth0.1"\
-        ucidef_set_led_netdev "wan" "wan" "$boardname:white:wan" "usb0"\
-        set_wifi_led "$boardname:white:wlan"\
-        ;;\
+ ucidef_set_led_netdev "wan" "wan" "$boardname:white:wan" "usb0"\
+ set_wifi_led "$boardname:white:wlan"\
+        ;;
 ```
 mr200v4)
 	ucidef_set_led_netdev "lan" "lan" "$boardname:white:lan" "eth0.1"
@@ -14,3 +14,17 @@ mr200v4)
 	set_wifi_led "$boardname:white:wlan"
 ;;
 ```
+
+
+file: target/linux/ramips/base-files/etc/board.d/02_network
+
+tplink,c20-v1)
+ ucidef_add_switch "switch0" \
+  "1:lan:3" "2:lan:4" "3:lan:1" "4:lan:2" "0:wan" "6@eth0"
+ ;;
+```
+        mr200v4)
+                ucidef_add_switch "switch0" \
+                        "1:lan" "2:lan" "3:lan" "4:wan" "6t@eth0"
+                ;;
+```