From 9914567649924529f09f494a611135d7d0059d07 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Felix=20Sp=C3=B6ttel?=
 <1682504+fspoettel@users.noreply.github.com>
Date: Mon, 17 Oct 2022 11:26:26 +0200
Subject: [PATCH] docs: add crate section

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index dbf1a34..de41911 100644
--- a/README.md
+++ b/README.md
@@ -158,3 +158,10 @@ Go to the _Secrets_ tab in your repository settings and create the following sec
 
 > **Note**  
 > The session cookie might expire after a while (~1 month) which causes the automated workflow to fail. To fix this issue, refresh the `AOC_SESSION` secret.
+
+## Useful crates
+
+-   [itertools](https://crates.io/crates/itertools): Extends iterators with extra methods and adaptors. Frequently useful for aoc puzzles.
+-   [hashbrown](https://crates.io/crates/hashbrown): Faster hashing functions for `HashMap` and `HashSet`.
+
+Do you have aoc-specific crate recommendations? [Share them!](https://github.com/fspoettel/advent-of-code-rust/edit/master/README.md)