update package docs

Author: kazupon

packages/runtime/README.md

@@ -2,13 +2,6 @@
 
 The runtime for intlify project
 
-## Forks
-The implementation of this module is contains code forked from other packages or projects:
-
-- [@vue/shared](https://github.com/vuejs/vue-next/tree/master/packages/shared)
-  - Author: Evan You
-  - License: MIT
-
 ## :copyright: License
 
 [MIT](http://opensource.org/licenses/MIT)

packages/vue-i18n/README.md

@@ -1,5 +1,7 @@
 # vue-i18n
 
+Internationalization plugin for Vue.js
+
 ## :copyright: License
 
 [MIT](http://opensource.org/licenses/MIT)