update readme

README.md

@@ -6,9 +6,11 @@ etherswitch is a simple daemon to control a toggle switch attached to a router.
 How to use it
 -------------
 
+* Build opkg package `make ipk`
+
 * Get a router
   * Install OpenWRT
-  * Install etherswitch
+  * Install etherswitch `opkg install etherswitch.ipk`
   * Configure etherswitch
 * Get an ethernet cable and a toggle switch
   * Cross RX+ and TX+
@@ -19,8 +21,6 @@ How to use it
 TODO
 ----
 
-* Make a package for OpenWRT
-* Re-introduce the possibility to use it with physical ethernet interface (without using ip)
-* Write a real readme
-
-  
+* [x] Make a package for OpenWRT
+* [ ] Re-introduce the possibility to use it with physical ethernet interface (without using ip)
+* [ ] Write a real readme