fixed some typos

fixed some issues in the docs

fixed markdown violation in solution files

fixed markdown violation in solution files

fixed a typo in the config file

updated the challenge description in config file

set the dark theme

change the falco-systemd.png image

fixed the theme config issue

Revert "included a missing file for challenge 04"

change the theme

included a missing file for challenge 04

updated the readme with some minor changes

challenge 04 initial documentation

change the image location