Improve Docs: Add preamble pages (Home / Installation / Usage)

[bcullman]

Description

Follow design seen here:
https://sap.github.io/fundamental-ngx/docs/home

CORUI-6167

[christinec01]

Hey there! Curious how you were able to get your storybook powered app to default to loading the docs page rather than canvas.

[jbadan]

@christinec01
Using --docs argument for storybook-static will have this affect. It's undocumented in storybook and subject to change though! https://github.com/SAP/fundamental-react/blob/master/package.json#L38

[christinec01]

Thanks @jbadan !
I did come across the --docs flag, but it seems to altogether hide the 'canvas' and 'docs' tabs as well, which isn't desired; did you find this to be the case? (sorry if I'm missing something obvious!)

[jbadan]

@christinec01 No problem! We wanted to hide the tabs on our published website (only showing what would have been in docs), only showing the tabs in dev mode. I'm not sure how to accomplish what you want, but I believe there are some issues about it in the storybook repo.