[SDKCLI-35] User confused by context

[yoannfleurydev]

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

First users are confused by the context prompt on their first npx @saagie/sdk init. We need a better prompt so the users can understand quickly what a context is.

Describe the solution you'd like

A prompt with a direct link to the documentation or a better explanation of what a context is directly in the prompt.

[github-actions]

👍 JIRA Issue created : [SDKCLI-35]