Updated, a bit touched up and extended justification.md

See merge request sd30396/ai_project_ss2022!6

# Conflicts:
#   sleeping_times/justification.md

Update justification.md

See merge request sd30396/ai_project_ss2022!5

common: Add functions to manipulate the timestamps

See merge request sd30396/ai_project_ss2022!4

- function to read the database
- function to extract the timestamps
- function to get the weekdays

Initial Folder

See merge request sd30396/ai_project_ss2022!2

rAnalysis: Remove hard coded path

See merge request sd30396/ai_project_ss2022!1

Furthermore, remove extra spaces from
the script and README files.