From ad818ccd9493bf66c9eb9c473aee939e3c15d8a2 Mon Sep 17 00:00:00 2001
From: Jonathan Bell <jon@jonbell.net>
Date: Thu, 16 Mar 2023 09:48:19 -0400
Subject: [PATCH] Devops readings

---
 calendar.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/calendar.md b/calendar.md
index 1d5361d..d5ebce2 100644
--- a/calendar.md
+++ b/calendar.md
@@ -144,6 +144,9 @@ weeks:
         Tue:
             date: 2023/03/21
             name: 'Overview: Deployment and Operations'
+            required:
+                - "[The $440 Million Software Error at Knight Capital](https://www.henricodolfing.com/2019/06/project-failure-case-study-knight-capital.html)"
+                - "[Do The Simple Thing First: The Engineering Behind Instagram](https://www.fastcompany.com/3047642/do-the-simple-thing-first-the-engineering-behind-instagram)"
         Thu:
             date: 2023/03/23
             name: 'Discussion: DevOps'