Description

Updates regarding security practices, restructure of document, other notes. Planned for update of Riktlinjer.

Checklist

[x] Changes are limited to a single goal (avoid scope creep)
[x] I confirm that I have read any Contribution and Development guidelines (CONTRIBUTING and DEVELOPMENT) and are following their suggestions.
[x] I confirm that I wrote and/or have the right to submit the contents of my Pull Request, by agreeing to the Developer Certificate of Origin, (adding a 'sign-off' to my commits).