README.md in textbringer-0.1.6 vs README.md in textbringer-0.1.7

@@ -1,14 +1,15 @@
 # Textbringer
 
 [![Gem Version](https://badge.fury.io/rb/textbringer.svg)](https://badge.fury.io/rb/textbringer)
+[![Dependency Status](https://gemnasium.com/shugo/textbringer.svg)](https://gemnasium.com/shugo/textbringer)
 [![Build Status](https://travis-ci.org/shugo/textbringer.svg?branch=master)](https://travis-ci.org/shugo/textbringer)
 [![Build status](https://ci.appveyor.com/api/projects/status/n20vtpfgcgii5jtc?svg=true)](https://ci.appveyor.com/project/shugo31737/textbringer)
 [![codecov](https://codecov.io/gh/shugo/textbringer/branch/master/graph/badge.svg)](https://codecov.io/gh/shugo/textbringer)
 
-Textbringer is a member of a demon race that takes on the form of a text
-editor.
+Textbringer is a member of a demon race that takes on the form of an Emacs-like
+text editor.
 
 ## Demo
 
 [![asciicast](https://asciinema.org/a/100156.png)](https://asciinema.org/a/100156)
 
@@ -28,30 +29,63 @@
 
     $ textbringer
 
 You can quit the editor by C-x C-c.
 
-## Configuration of terminal emulators
+## Configuration
 
-### xterm
+### Meta key
 
+You need the following configuration of terminal emulators to use meta key.
+
+#### xterm
+
 Add the following line to ~/.Xresources.
 
     XTerm*metaSendsEscape: true
 
-### mlterm
+#### mlterm
 
 Add the following lines to ~/.mlterm/main.
 
     mod_meta_key = alt
     mod_meta_mode = esc
-    col_size_of_width_a = 1
 
-### screen
+### East asian ambiguous width
 
+Add the following line to ~/.textbringer.rb to treat
+[ambiguous characters](http://unicode.org/reports/tr11/#Ambiguous)
+as fullwidth.
+
+    CONFIG[:east_asian_ambiguous_width] = 2
+
+You also need a LD_PRELOAD hack or a modified locale charmap because ncursesw
+uses wcwidth(3).
+
+* https://github.com/fumiyas/wcwidth-cjk
+* https://github.com/hamano/locale-eaw
+
+xterm, mlterm and screen have their own configuration options.
+
+#### xterm
+
+Add the following lines to ~/.Xresources.
+
+    xterm*utf8: 1
+    xterm*locale: true
+    xterm*cjkWidth: true
+
+#### mlterm
+
+Add the following line to ~/.mlterm/main.
+
+    col_size_of_width_a = 2
+
+#### screen
+
 Add the following line to ~/.screenrc.
 
-    cjkwidth off
+    cjkwidth on
 
 ## Development
 
 After checking out the repo, run `bundle install` to install dependencies. You can also run `bin/console` for an interactive prompt that will allow you to experiment.