README.md in mireru-0.1.5 vs README.md in mireru-0.1.6

@@ -2,10 +2,15 @@
 
 A file viewer with a focus on flexibility by Ruby/GTK3.
 
 A friend of a keyboard.
 
+## Requirements
+
+* Ruby/GTK3, Ruby/GtkSourceView3, Ruby/ClutterGTK, Ruby/ClutterGStreamer in
+  [Ruby-GNOME2](http://ruby-gnome2.sourceforge.jp/)
+
 ## Installation
 
     $ gem install mireru
 
 ## Usage
@@ -56,9 +61,13 @@
 o: original size<br />
 
 #### Text
 
 f: change font (at random)<br />
+
+#### Video
+
+space: play/pause<br />
 
 ## Contributing
 
 1. Fork it
 2. Create your feature branch (`git checkout -b my-new-feature`)