From 006839e44172069085cf1a935d46a61efaa4e1eb Mon Sep 17 00:00:00 2001
From: Christopher De Vries <devries@idolstarastronomer.com>
Date: Sun, 15 Oct 2023 10:57:28 -0400
Subject: [PATCH] update to go1.21 and add a docstring to utils package

---
 .github/workflows/main.yml | 6 +++---
 utils/functions.go         | 2 ++
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 41e3575..688f415 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,10 +10,10 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-go@v3
+      - uses: actions/checkout@v4
+      - uses: actions/setup-go@v4
         with:
-          go-version: '^1.20'
+          go-version: '^1.21'
 
       - name: Test utilities
         run: go test -cover ./utils
diff --git a/utils/functions.go b/utils/functions.go
index bd91885..0b1a4bf 100644
--- a/utils/functions.go
+++ b/utils/functions.go
@@ -1,3 +1,5 @@
+// Package utils implements various utility functions and procedures which have
+// been useful for previous Advents of Code.
 package utils
 
 import (