Mark tools as third party tools in the website (#388)

* Mark tools as third party tools.
diff --git a/docs/.vuepress/config.js b/docs/.vuepress/config.js
index 2180328..7c8ab84 100644
--- a/docs/.vuepress/config.js
+++ b/docs/.vuepress/config.js
@@ -30,7 +30,7 @@
         nav: [
           { text: 'Guide', link: '/guide/' },
           { text: 'Docs', link: '/docs/' },
-          { text: 'Tools', link: '/tools/' },
+          { text: 'Third Party Tools', link: '/tools/' },
           { text: 'Community', link: '/community/' },
           { text: 'Blog', link: '/blog/' }
         ],
@@ -192,7 +192,7 @@
         nav: [
           { text: '指南', link: '/zh/guide/' },
           { text: '文档', link: '/zh/docs/' },
-          { text: '工具', link: '/zh/tools/' },
+          { text: '第三方工具', link: '/zh/tools/' },
           { text: '社区', link: '/zh/community/' },
           { text: '博客', link: '/zh/blog/' }
         ],
diff --git a/docs/tools/extension.md b/docs/tools/extension.md
index ad841d1..cf76667 100644
--- a/docs/tools/extension.md
+++ b/docs/tools/extension.md
@@ -1,3 +1,7 @@
+:::danger
+VSCode Extension is a third party plugin, and is not developed nor maintained by Apache Weex.
+:::
+
 # Introduction
 
 ## Features
diff --git a/docs/tools/toolkit.md b/docs/tools/toolkit.md
index 5d89fb5..5639f9e 100644
--- a/docs/tools/toolkit.md
+++ b/docs/tools/toolkit.md
@@ -1,5 +1,9 @@
 # Introduction
 
+:::danger
+Weex Toolkit is a third party plugin, and is not developed nor maintained by Apache Weex.
+:::
+
 ::: warning warning
 This document is for the `weex-toolkit` **2.x** version. For the old version of the `weex-toolkit` documentation, please go to [here](https://github.com/weexteam/weex-toolkit/blob/v1.0/README.md).
 :::
diff --git a/docs/zh/tools/extension.md b/docs/zh/tools/extension.md
index 9ab6f7b..5fbf5ad 100644
--- a/docs/zh/tools/extension.md
+++ b/docs/zh/tools/extension.md
@@ -1,3 +1,7 @@
+:::danger
+Weex Toolkit 是三方插件, 不由 Apache Weex 开发或维护。
+:::
+
 # 介绍
 
 ## 功能
diff --git a/docs/zh/tools/toolkit.md b/docs/zh/tools/toolkit.md
index 29e4ffe..7dbc364 100644
--- a/docs/zh/tools/toolkit.md
+++ b/docs/zh/tools/toolkit.md
@@ -1,3 +1,7 @@
+:::danger
+VSCode Extension 是三方插件, 不由 Apache Weex 开发或维护。
+:::
+
 # 介绍
 
 ::: warning 警告