feat: add progress calendar

README.md

@@ -0,0 +1,17 @@
+# Advent of Code
+
+This repo contains my attempt at this year's Advent of Code (2025)
+
+I will solve this AoC using Lua in the context of the ComputerCraft Minecraft mod.\
+This project can also be run using the amazing [CraftOS-PC emulator](https://github.com/MCJack123/craftos2)
+
+## Progress
+
+<!-- calendar-start -->
+#### Stars: 0/24
+
+|Mon|Tue|Wed|Thu|Fri|Sat|Sun|
+|:-:|:-:|:-:|:-:|:-:|:-:|:-:|
+|1<br>|2<br>|3<br>|4<br>|5<br>|6<br>|7<br>|
+|8<br>|9<br>|10<br>|11<br>|12<br>|||
+<!-- calendar-end -->