Update README

fix #14

Author: natural-harmonia-gropius

README.md

@@ -1,16 +1,28 @@
 # Recent menu
 
-It works, just works
+Recently played menu for mpv integrated with uosc.
+
+## Getting started
+
+[tomasklaen/uosc](https://github.com/tomasklaen/uosc) is required.
+
+[Menu](https://github.com/tomasklaen/uosc#adding-items-to-menu) - add following to `input.conf`.
 
 ```ini
 #                   script-binding recentmenu/open                      #! Recently played
 ```
 
-If you want an entry in the controls bar of uosc, you can add the following to the `controls=` entry in your `uosc.conf`:
+[Controls](https://github.com/tomasklaen/uosc#set-prop-value) - add following to `uosc.conf#controls`.
 
 ```ini
 command:history:script-message-to recentmenu open?Recently played
 ```
 
-- Pick your desired title instead of `Recently played`
-- Pick another icon instead of `history` from [Google Material Icons](https://fonts.google.com/icons?selected=Material+Icons)
+## Options
+
+```ini
+path = "~~/recent.json"                 # where the history is stored
+length = 10                             # number of items
+width = 88                              # number of characters for the item
+ignore_same_series = yes                # similar file names only record the most recent one
+```