Replace documentation engine (#85)

* Replace documentation engine

• Replace the docs by VuePress

* Set the base URL

• The base URL the site will be deployed at

Author: SombreroElGringo

CONTRIBUTING.md

@@ -18,8 +18,7 @@ Here are each top-level directory explained:
 * `lib`: TypeScript source code. You may modify files under this directory.
 * `test`: Mocha test suites. Please add tests for modification if possible.
 * `examples`: Example projects using this SDK
-* `docs`: [GitBook](https://www.gitbook.com/) markdowns for project documentation
-  + Please install GitBook first to modify/build documentation: `npm i -g gitbook-cli`
+* `docs`: [VuePress](https://vuepress.vuejs.org) markdowns for project documentation
 * `tools`: Useful tools
 
 Also, you may use the following npm scripts for development:

docs/.vuepress/config.js

@@ -0,0 +1,87 @@
+module.exports = {
+  base: '/line-bot-sdk-nodejs',
+  head: [
+    ['link', { rel: 'icon', href: '/favicon.ico' }]
+  ],
+  title: 'line-bot-sdk-nodejs',
+  description: 'Node.js SDK for LINE Messaging API',
+  themeConfig: {
+    nav: [
+      { 
+        text: 'Introduction', 
+        link: '/' 
+      },
+      { 
+        text: 'Getting Started',
+        link: '/getting-started'
+      },
+      { 
+        text: 'Guide',
+        link: '/guide'
+      },
+      { 
+        text: 'API Reference',
+        link: '/api-reference'
+          
+      },
+      { 
+        text: 'Contributing', 
+        link: '/CONTRIBUTING' 
+      },
+      { 
+        text: 'LINE Developers', 
+        link: 'https://developers.line.me/en/' 
+      },
+      { 
+        text: 'GitHub', 
+        link: 'https://github.com/line/line-bot-sdk-nodejs/' 
+      },
+    ],
+    sidebar: [
+      {  
+        title: "Introduction",
+        collapsable: false,
+        children: [
+          '',
+        ]
+      },
+      {  
+        title: "Getting Started",
+        collapsable: false,
+        children: [
+          '/getting-started/requirements',
+          '/getting-started/install',
+          '/getting-started/basic-usage',
+        ]
+      },
+      {  
+        title: "Guide",
+        collapsable: false,
+        children: [
+          '/guide/webhook',
+          '/guide/client',
+          '/guide/typescript',
+        ]
+      },
+      {  
+        title: "API Reference",
+        collapsable: false,
+        children: [
+          '/api-reference/client',
+          '/api-reference/validate-signature',
+          '/api-reference/middleware',
+          '/api-reference/exceptions',
+          '/api-reference/message-and-event-objects',
+        ]
+      },
+      {  
+        title: "Contributing",
+        collapsable: false,
+        children: [
+          '/CONTRIBUTING',
+        ]
+      },
+    ]
+  }
+}
+