[Improvement][WebSite]Official website construction

[CalvinKirs]

• Add contributor guide
  please refer https://dolphinscheduler.apache.org/en-us/community/team.html

• Add a Blog page to the navigation bar
  Add a blog column to the navigation bar, place user cases and some sharing,

https://interestinglab.github.io/seatunnel-docs/#/zh-cn/case_study/
These contents can be migrated, and the English version needs to be provided by contributors first.

• Document structure adjustment
  Documents need to support Chinese and English switching, you can refer to the structure of DolphinScheduler
  

1.X is kept in the web-site warehouse, 2.x we will parse the documents in the code warehouse, and follow-up documents follow the code warehouse.

• Add FAQ Page
  FAQ #267
  The FAQ page needs to be translated into English. And provide a separate page.

• Add a user page
  https://skywalking.apache.org/users/

Add a user page in the user column of the navigation bar
Similar to skywalking
Our registered users can be found here Who is using SeaTunnel)

• English page Chinese translation
  https://seatunnel.apache.org/

[CalvinKirs]

NOTICE: please submit code to https://github.com/apache/incubator-seatunnel-website

[garyelephant]

@CalvinKirs @wolfboys where should we put blog contents?

[CalvinKirs]

@CalvinKirs @wolfboys where should we put blog contents?

such as :https://skywalking.apache.org/blog/ WDYT?

[wolfboys]

@CalvinKirs @wolfboys where should we put blog contents?

ok, let me deal with it

[zhuangchong]

@CalvinKirs I will deal with the 'Add contributor guide'

[stale]

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