New website for bolt

[ajaymathur]

we are using https://github.com/facebook/Docusaurus to create the website.

Please refer - https://docusaurus.io/docs/en/installation.html

• get all docs done - will create another issue to track this
• enable search - algolia doc search -
• update footer to have all links

This is under construction, please feel free to suggest and/ or implement features.

Pull request need to raised on docusaurus branch.