docs: revamp README

[masci]

Preview link

• Link to llamaindex docs
• Make it shorter
• Add status badges

[coveralls]

coverage: 65.828%. remained the same
when pulling 6473950 on massi/readme
into d53a748 on main.

[logan-markewich]

Do we still want some kind of quick-start in the readme? (Feels like something that most readme's have)

[masci]

Do we still want some kind of quick-start in the readme? (Feels like something that most readme's have)

I was thinking the section "Getting started" would serve that purpose, any alternative you had in mind, or should I just move it upper?
Edit: I missed the still - I'm ok with removing it, the "getting started" might just be the list of examples, maybe with a stronger call to action

[logan-markewich]

Yea I like that idea -- just want to get users most quickly started from the readme 👍🏻