fix: ssr package dep, fixed #605

src/core/config.js

@@ -1,5 +1,4 @@
 import {merge, hyphenate, isPrimitive, hasOwn} from './util/core'
-import {version as pkgVersion} from './../../package.json'
 
 export default function () {
   const config = merge(
@@ -65,7 +64,6 @@ export default function () {
     }
   }
 
-  config.version = pkgVersion
   window.$docsify = config
 
   return config