From ac5922d17e466717511273817f46590baa613e17 Mon Sep 17 00:00:00 2001
From: vincenterc <chung.menghsun@gmail.com>
Date: Wed, 19 May 2021 07:30:59 +0800
Subject: [PATCH] docs(exercises): add information for collections

Add additional further information for collections
---
 exercises/collections/README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/exercises/collections/README.md b/exercises/collections/README.md
index 0291bc8..7edafdf 100644
--- a/exercises/collections/README.md
+++ b/exercises/collections/README.md
@@ -20,3 +20,4 @@ structures that are used very often in Rust programs:
 ## Further information
 
 - [Storing Lists of Values with Vectors](https://doc.rust-lang.org/stable/book/ch08-01-vectors.html)
+- [Storing Keys with Associated Values in Hash Maps](https://doc.rust-lang.org/stable/book/ch08-03-hash-maps.html)