Improve Developer Experience for people new to Helix

[stefan-guggisberg]

Is your feature request related to a problem? Please describe.

The currently available documentation is scattered over several projects, inconsistent and in some areas scarce to non-existent.

Creating a new project and deploying/publishing it is an error prone frustrating process.

A developer new to Helix will need expert help, explaining cryptic error messages, confusing CLI output, non-intuitive configuration options etc.

Describe the solution you'd like

There should be a one stop url for all Helix related documentation, linking/consolidating all existing documentation.

There should be a short concise tutorial guiding through the process of building, deploying and publishing a first Helix project.

The Helix CLI should provide reasonable defaults, meaningful & consistent output and error messages for inexperienced users.

A Developer new to Helix should be able to successfully finish the tutorial without any need for external help.

[trieloff]

See also: adobe/helix-home@9d6a5f7#diff-2dd1a9fb276aebde38ff6ad8d4fdbd5b

[rofe]

Let's tackle this in adobe/helix-pages#995 for Helix 3.