Add Twistlock's blog post

Adding a blog post on securing Kubernetes for OpenFaaS

Signed-off-by: Daniel Shapira <daniel@twistlock.com>

community.md

@@ -73,6 +73,7 @@ Key:
 | Blog/repo name and description                                          | Author       | Site     | Date        |
 |---------------------------------------------------------------------|--------------|----------|-------------|
 | [VMware + OpenFaaS – One Month In](https://blogs.vmware.com/opensource/2018/03/20/vmware-openfaas-alex-ellis) | Alex Ellis | vmware.com | 21-Mar-2018 |
+| [Securing Kubernetes for OpenFaaS and beyond](https://www.twistlock.com/2018/03/20/securing-kubernetes-openfaas-beyond) | Daniel Shapira | twistlock.com | 20-Mar-2018 |
 | [What Is OpenFaaS and How Can It Drive Innovation?](https://www.contino.io/insights/what-is-openfaas-and-why-is-it-an-alternative-to-aws-lambda-an-interview-with-creator-alex-ellis) | Ben Tannahill | contino.com | 19-Mar-2018 |
 | [VMware Welcomes Alex Ellis](https://blogs.vmware.com/opensource/2018/02/19/vmware-welcomes-alex-ellis/) | VMware team | vmware.com | 19-Feb-2018 |
 | [I'm going to be working on OpenFaaS full-time](https://github.com/openfaas/faas-netes/issues/145) | Alex Ellis | alexellis.io | 19-Feb-2018 |