first two days

README.md

@@ -6,6 +6,15 @@ Solutions for [Advent of Code](https://adventofcode.com/) in [Rust](https://www.
 
 <!--- advent_readme_stars table --->
 
+<!--- benchmarking table --->
+## Benchmarks
+
+| Day | Part 1 | Part 2 |
+| :---: | :---: | :---:  |
+| [Day 1](./src/bin/01.rs) | `881.1µs` | `849.0µs` |
+| [Day 2](./src/bin/02.rs) | `225.7ms` | `250.4ms` |
+
+**Total: 477.83ms**
 <!--- benchmarking table --->
 
 ---