Onboarding documentation improvements
This MR fixes issues 91 and adds link to the Sol Ansible playbook.
Dear users, GitLab application maintenance is scheduled to 23.4. 08:30-15:30 . GitLab, Pages, Mattermost might become unresponsive. We apologize for any inconvenience caused.
This MR fixes issues 91 and adds link to the Sol Ansible playbook.