Add chillfloor text (in english)

Closes #2 (closed)

docs/chillfloor.md

+## Chillfloor: Herzbergstich
+
+Location: <https://map.events.ccc.de/camp/2023/map/#18.76/53.0336367/13.3055786/m=53.0336367,13.3055786>
+
+
+Chill at the lake? Relax, bop/dance and enjoy all kinds of ambient and chillout music? We are serving you this at the small, comfy lagoon at the Herzbergstich - with it's own bathing area.
+
+Our line-up promises a varied program. There will be jam sessions at modular devices, hand-made music with vocals and finest selected Vinyl. Also a book reading is part of the program.
+
+At night, our VJs will enchant the lagoon with fantastic light shows.
+The bar provides us with cold beverages to-go.
+
+Kaffe Güzel has joined us and would also like to enchant you with self-roasted, finest vegan coffee specialities, delicious spicy hot chocolate and Chai Latte á la Güzel. For breakfast, they serve Schüsch muesli and grilled toast sandwiches. The yurt is a great place to hang out - stop by! Kaffe Güzel is a wandering volunteer café, find out more at [their website](https://kaffe-guezel.de) or follow them at [Instagram](https://instagram.com/kaffe_guezel/).
+
+You can reach us via DECT 2455 and you can find our program in the schedule.
+
+We look forward to see you!