project posts now just with category and without folder

_posts/blog/2018-12-21-brandschutz.md

_posts/blog/2019-07-15-chamaeleonidae.md

_posts/blog/2019-11-01-nachtlicht.md

_posts/blog/2020-05-01-history-bot.md

_posts/blog/2022-06-23-datenuebertragung-mit-laser.md

_posts/blog/2022-11-05-das-neue-nachtlicht.md

_posts/blog/2023-05-05-hausdurchsuchung-2.md

_posts/blog/2023-05-25-nook-2023-die-planung-beginnt.md

_posts/blog/2023-06-05-luxmux3.md

_posts/blog/2023-07-15-nook-2023-cfp.md

_posts/blog/2024-03-28-cms-muehlenweg-schule.md