chore: changelog

Author: yyx990803

CHANGELOG.md

@@ -1,3 +1,14 @@
+<a name="0.4.0"></a>
+# [0.4.0](https://github.com/vuejs/vuepress/compare/v0.3.3...v0.4.0) (2018-04-15)
+
+
+### Features
+
+* allow default theme to be copied as custom theme ([98e1665](https://github.com/vuejs/vuepress/commit/98e1665))
+* vuepress eject for customizing default theme ([89538fa](https://github.com/vuejs/vuepress/commit/89538fa))
+
+
+
 <a name="0.3.3"></a>
 ## [0.3.3](https://github.com/vuejs/vuepress/compare/v0.3.2...v0.3.3) (2018-04-15)