add docs website config (#251)

* add docs website config

* move files in doc/ to docs/

.github/workflows/publish-docs.yaml

+name: Publish docs via GitHub Pages
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  deploy:
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Setup Python
+        uses: actions/setup-python@v1
+        with:
+          python-version: '3.7'
+          architecture: 'x64'
+
+      - name: Install dependencies
+        run: |
+          pip install --upgrade pip
+          pip install -r docs/requirements.txt
+      - name: Build
+        run: mkdocs build -f docs/mkdocs.yml
+
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.PUBLISH_DOCS_TOKEN }}
+          publish_dir: site

README.md

@@ -21,7 +21,7 @@ OceanBase Database supports the entire core business of Alipay and the core syst
 
 ## Quick start
 
-Refer to the [Get Started guide](doc/quick-start-en.md) to try out OceanBase Database.
+Refer to the [Get Started guide](docs/en/quick-start-en.md) to try out OceanBase Database.
 
 ## Documentation
 

docs/README.md

+# OceanBase Documentation
+Welcome to the OceanBase documentation!
+
+This directory stores all the source files of OceanBase documentation website.
+
+## Starting a server locally
+
+OceanBase documentation website is built with [MkDocs](https://www.mkdocs.org/). To install all dependencies, run:
+
+    $ pip install -r ./requirements.txt
+
+Generate the site, and start a server locally:
+
+    $ mkdocs serve
+
+Open up http://127.0.0.1:8000/ in your browser, and you'll see the default home page.
+
+## Contributing
+
+See [How to Contribute](../CONTRIBUTING.md).
\ No newline at end of file

docs/index.md

+# 欢迎使用 OceanBase 文档
+
+OceanBase is an enterprise distributed relational database with high availability, high performance, horizontal scalability, and compatibility with SQL standards.
\ No newline at end of file

docs/mkdocs.yml

+site_name: OceanBase 手册
+repo_url: 'https://github.com/oceanbase/oceanbase'
+repo_name: 'OceanBase'
+edit_uri: 'edit/master/docs/'
+docs_dir: './'
+site_dir: '../site'
+theme:
+  name: 'material'
+nav:
+  - Home: 'index.md'

docs/requirements.txt

+mkdocs==1.1.2
+mkdocs-material
+mkdocs-macros-plugin
+mike
+mdx_truly_sane_lists
+mkdocs_latest_release_plugin
+mkdocs-git-revision-date-localized-plugin
+weasyprint
+mkdocs-with-pdf
+qrcode