Update 2023.md

Author: MichaelCade

2023.md

@@ -157,13 +157,13 @@ Or contact us via Twitter, my handle is [@MichaelCade1](https://twitter.com/Mich
 ### Engineering for Day 2 Ops
 
 
-- [] 👷🏻‍♀️ 84 > [Writing an API - What is an API?](2023/day84.md)
-- [] 👷🏻‍♀️ 85 > [Queues, Queue workers and Tasks (Asynchronous architecture)](2023/day85.md)
-- [] 👷🏻‍♀️ 86 > [Designing for Resilience, Redundancy and Reliability](2023/day86.md)
-- [] 👷🏻‍♀️ 87 > [Zero Downtime Deployments](2023/day87.md)
-- [] 👷🏻‍♀️ 88 > [Monitoring, Alerting and On-Call](2023/day88.md)
-- [] 👷🏻‍♀️ 89 > [Oops: When something goes wrong - Post Mortems](2023/day89.md)
+- [✔️] 👷🏻‍♀️ 84 > [Writing an API - What is an API?](2023/day84.md)
+- [✔️] 👷🏻‍♀️ 85 > [Queues, Queue workers and Tasks (Asynchronous architecture)](2023/day85.md)
+- [✔️] 👷🏻‍♀️ 86 > [Designing for Resilience, Redundancy and Reliability](2023/day86.md)
+- [✔️] 👷🏻‍♀️ 87 > [Zero Downtime Deployments](2023/day87.md)
+- [✔️] 👷🏻‍♀️ 88 > [Monitoring, Alerting and On-Call](2023/day88.md)
+- [✔️] 👷🏻‍♀️ 89 > [Oops: When something goes wrong - Post Mortems](2023/day89.md)
 
 ### 2023 wrap up
 
-- [] 👷🏻‍♀️ 90 > [Wrapping up the 2023 edition](2023/day90.md)
+- [✔️] 🏁 90 > [Wrapping up the 2023 edition](2023/day90.md)