Getting started guides should be simplified

[kartiklunkad26]

Description

Currently the "Getting Started" section refers to two primary topics - "Managed Clusters" and "Standalone Clusters". Each of these sections include documentation for a few tasks such as installing TCE (through a couple of different methods), creating a cluster on any of the four IaaSes, installing a Tanzu Package.

This ends up making the Getting Started guides quite long. The purpose I think of Getting Started guides is to take an opinionated approach to quickly getting the user up and running. There's also duplication of certain sections across "Getting Started" and "Installation" sections such as "Installing TCE"

Proposal

My proposal is to slightly refactor this section to instead reflect certain tasks that the user might need to do.

1. Create a managed cluster
2. Create a unmanaged cluster
3. Install a Tanzu Package

We can also reference the "installing TCE" step as part of 1 & 2 here to the existing page in the "Installation guide" for it.

This will also create room for new getting started guides such as "Create a workload" that will become available over the next few months.

Happy to collaborate on this!

[joshrosso]

@kartiklunkad26 one item of note, the standalone getting started guide is going away in favor of unamanged-cluster:

#2820

@kcoriordan can you consider this change and the feedback above. Let us know how you'd like to proceed!

[kcoriordan]

thanks @kartiklunkad26 - some great suggestions here. I plan to action these in conjunction with other restructure after v0.10.0 is releases

[kartiklunkad26]

Hey @kcoriordan hope we can work on this now! Happy to pair.