Update README and references

2022/README.md

@@ -0,0 +1,20 @@
+# Advent of Code 2022
+
+Another year and another Advent of Code in Rust. Because last year went so well, this time we'll be
+aiming for a total time of under 250ms.
+
+```console
+$ target/release/aoc_2022 --help
+Advent of Code 2022 runner
+
+Usage: aoc_2022 [OPTIONS] <DAY>
+
+Arguments:
+  <DAY>  Which day to run
+
+Options:
+  -t, --time           Print time taken
+  -2, --part2          Run part 2 instead of part 1
+  -i, --input <INPUT>  Read input from the given file instead of stdin
+  -h, --help           Print help information
+```

2022/src/main.rs

@@ -9,7 +9,7 @@ use clap::Parser;
 
 use aoc_2022::get_implementation;
 
-/// Advent of Code 2021 runner
+/// Advent of Code 2022 runner
 #[derive(Parser)]
 struct Opts {
     /// Which day to run

README.md

@@ -1,6 +1,6 @@
 # Advent of Code
 
-[![Advent of Code 2021](https://github.com/bertptrs/adventofcode/actions/workflows/2021.yml/badge.svg)](https://github.com/bertptrs/adventofcode/actions/workflows/2021.yml)
+[![Advent of Code 2021](https://github.com/bertptrs/adventofcode/actions/workflows/2022.yml/badge.svg)](https://github.com/bertptrs/adventofcode/actions/workflows/2022.yml)
 
 This repository contains my solutions for Advent of Code. See:
 
@@ -11,3 +11,4 @@ This repository contains my solutions for Advent of Code. See:
 - [2019 edition](./2019)
 - [2020 edition](./2020)
 - [2021 edition](./2021)
+- [2022 edition](./2022)