include ro_gz_size in update.js

NOTE:
  pick up from e484013388f6b7a53f42b1a5150ba0e50e398a33

Author: yyx990803

src/guide/installation.md

@@ -2,11 +2,11 @@
 title: インストール
 type: guide
 order: 1
-vue_version: 2.0.0-rc.6
-dev_size: "184"
-min_size: "64"
-gz_size: "22"
-ro_gz_size: "16"
+vue_version: 2.0.5
+dev_size: "194.65"
+min_size: "64.28"
+gz_size: "23.55"
+ro_gz_size: "16.39"
 ---
 
 ### 互換性の注意

update.js

@@ -1,7 +1,7 @@
 var fs = require('fs')
 var version = require('../vue/package.json').version
 var themeconfPath = 'themes/vue/_config.yml'
-var installPath = 'src/guide/installation.md'
+var installPath = 'src/v2/guide/installation.md'
 var themeconfig = fs.readFileSync(themeconfPath, 'utf-8')
 var installation = fs.readFileSync(installPath, 'utf-8')
 
@@ -13,7 +13,8 @@ fs.writeFileSync(
 var sizes = {
   dev: 'vue.js',
   min: 'vue.min.js',
-  gz: 'vue.min.js.gz'
+  gz: 'vue.min.js.gz',
+  ro_gz: 'vue.common.min.js.gz'
 }
 
 for (var file in sizes) {