docs: fixed vuepress link to next branch (#4604)

NataliaTepluhina · haoqunjiang · commit cc9dba64a704 · 2019-09-22T13:23:30.000+08:00
diff --git a/docs/.vuepress/config.js b/docs/.vuepress/config.js
@@ -50,7 +50,7 @@ module.exports = {
   themeConfig: {
     repo: 'vuejs/vue-cli',
     docsDir: 'docs',
-    docsBranch: 'docs',
+    docsBranch: 'next',
     editLinks: true,
     sidebarDepth: 3,
     algolia: {
