Create online docs based on docsify

Description

Issues :

Generator

• New or updated files?

Checklist before merge :

• No remaining console.log
• Version changed if new feature
• Lint ok
• all eslintConfig rules are on ("2") (except no-useless-escape / vue/no-mutating-props)
• Test aktivisda and backtivisda

Tests

• Tests are ok
• If it’s a bug, a new test added
• If it’s a new feature, a new test added