README.md in japanese-bookkeeping-svg-0.0.1 vs README.md in japanese-bookkeeping-svg-0.0.2

@@ -1,12 +1,18 @@
 # japanese-bookkeeping-svg
 
+[![Build Status](https://travis-ci.org/gunyarakun/japanese-bookkeeping-svg.svg?branch=master)](https://travis-ci.org/gunyarakun/japanese-bookkeeping-svg)
+[![Gem Version](https://badge.fury.io/rb/japanese-bookkeeping-svg.svg)](https://badge.fury.io/rb/japanese-bookkeeping-svg)
+![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)
+
 Generate SVG files for Japanese style bookkeeping diagrams.
 
+:warning: This SVG uses `textLength` attritube which is not be supported by some SVG viewer. Use [Firefox](https://www.mozilla.org/en-US/firefox/products/), [Batik](https://xmlgraphics.apache.org/batik/), etc.
+
 ## Usage
 
-```
+```bash
 gem install japanese-bookkeeping-svg
 ```
 
 仕訳
 
@@ -43,9 +49,26 @@
       諸口: 3456,
       次月繰越: 3310
     },
   ).to_s
 end
+```
+
+## Conversion to PNG with Batik
+
+Make `user.css`.
+
+```css
+text {
+  font-size: 16px;
+  font-family: "ヒラギノ明朝 ProN W6", "HiraMinProN-W6";
+}
+```
+
+Execute.
+
+```bash
+java -jar batik-1.8/batik-rasterizer-1.8.jar -w 2400 -cssUser user.css out.svg
 ```
 
 ## License
 
 ``japanese-bookkeeping-svg`` is distributed under the terms of the MIT license (see LICENSE.txt).