chore: update compatible node version

ulivz · ulivz · commit 1b6c4cdcd272 · 2019-04-15T23:33:21.000+08:00
diff --git a/packages/docs/docs/README.md b/packages/docs/docs/README.md
@@ -43,5 +43,5 @@ vuepress build
 ```
 
 ::: warning COMPATIBILITY NOTE
-VuePress requires Node.js >= 8.
+VuePress requires Node.js >= 8.6.
 :::
diff --git a/packages/docs/docs/zh/README.md b/packages/docs/docs/zh/README.md
@@ -30,5 +30,5 @@ vuepress build .
 ```
 
 ::: warning 注意
-请确保你的 Node.js 版本 >= 8。
+请确保你的 Node.js 版本 >= 8.6。
 :::
diff --git a/packages/vuepress/package.json b/packages/vuepress/package.json
@@ -34,7 +34,7 @@
     "cac": "^6.3.9"
   },
   "engines": {
-    "node": ">=8"
+    "node": ">=8.6"
   },
   "browserslist": [
     ">1%"
