readme fix

README.md

@@ -1,4 +1,28 @@
-yandex-music-download
+Yandex Music Downloader
 =====================
 
-Yandex Music downloader
+This is a simple command line Perl script for downloading music from Yandex Music (http://music.yandex.ru).
+Origin of the script is the following article: http://kaimi.ru/2013/11/yandex-music-downloader/
+
+# Usage
+
+```bat
+ya.pl [-adkpt] [long options...]
+	-p --playlist     playlist id to download
+	-k --kind         playlist kind (eg. ya-playlist, music-blog,
+	                  music-partners, etc.)
+	-a --album        album to download
+	-t --track        track to download (album id must be specified)
+	-d --dir          download path (current direcotry will be used by
+	                  default)
+	                
+	--debug           print debug info during work
+	--help            print usage
+	                
+	Example:        
+		ya.pl -p 123 -k ya-playlist
+		ya.pl -a 123   
+		ya.pl -a 123 -t 321
+```
+
+For further assistance don't hesitate to ask for help in GitHub issues or on the blog: http://kaimi.ru