Add reference

2019-12-01 15:05:31 -06:00 · 2019-12-01 15:05:31 -06:00 · 7557328316
parent c7edcd7ef0
commit 7557328316
1 changed files with 3 additions and 0 deletions
--- a/readme.md
+++ b/readme.md
@ -6,3 +6,6 @@ the years I've participated (to whatever extent).
 + [2019](./2019)
 + [2018](./2018)
 + [2017](./2017)
+	
+
+[aoc]: https://adventofcode.com