Added Cerner ShipIt blog post to community

Signed-off-by: Burton Rheutan <rheutan7@gmail.com>

community.md

@@ -97,6 +97,7 @@ Key:
 
 | Blog/repo name and description                                          | Author       | Site     | Date        |
 |---------------------------------------------------------------------|--------------|----------|-------------|
+| [Cerner ShipIt Hackathon - ShipIt XII](https://engineering.cerner.com/blog/shipit-xii/) | Caitie Oder | engineering.cerner.com | 30-Aug-2918 |
 | [5 tips and tricks for the OpenFaaS CLI](https://www.openfaas.com/blog/five-cli-tips/) | Alex Ellis | openfaas.com | 21-Aug-2018 |
 | [Multi-stage Serverless on Kubernetes with OpenFaaS and GKE](https://www.openfaas.com/blog/gke-multi-stage/) | Stefan Prodan | openfaas.com | 14-Aug-2018 |
 | [Managing state for Serverless Functions with Minio](https://blog.lapw.at/stateful-serverless-stack-openfaas-minio/) | Quentin Lapointe | lapw.at | 16-Aug-2018 |