README.md in mireru-0.0.8 vs README.md in mireru-0.0.9

@@ -1,9 +1,11 @@
-# Mireru - Flexible File Viewer
+# Mireru - Flexible File Viewer Keyboard Friend
 
 A file viewer with a focus on flexibility by Ruby/GTK3.
 
+A friend of a keyboard.
+
 ## Installation
 
     $ gem install mireru
 
 ## Usage
@@ -23,9 +25,19 @@
 p: prev
 
 r: reload
 
 q: quit
+
+#### Scroll
+
+h: left
+
+j: down
+
+k: up
+
+l: right
 
 #### Image
 
 f: fits window size