better readme

Author: spalberg

README.md

@@ -1,4 +1,23 @@
 # Advent of Code 2024
 
-> [!NOTE]
-> Getting ready...
+[![JSR](https://jsr.io/badges/@aoc/2024)](https://jsr.io/@aoc/2024)
+
+Welcome to the Advent of Code 2024! This repository is where the magic happens,
+with all solutions written in TypeScript and running on Deno – the best anagram
+of Node! Dive into the daily challenges and explore the code. Happy coding and
+may your algorithms be ever efficient!
+
+## CLI
+
+You don't have to check out this repository to test my code against your inputs!
+Simply run the published cli via JSR:
+
+```bash
+deno run -R jsr:@aoc/2024 --help
+```
+
+or directly with day and input:
+
+```bash
+deno run -R jsr:@aoc/2024 -d 2 -i ./inputs/2.txt
+```