Merge pull request #283 from npdgm/x509-certificate-exporter

add x509-certificate-exporter

README.md

@@ -185,6 +185,7 @@ Have Questions? Join us over [Slack](https://launchpass.com/collabnix) and get c
 |	17	|	Kuberhealthy  	|	[A Kubernetes operator for running synthetic checks as pods. Works great with Prometheus!](https://github.com/kuberhealthy/kuberhealthy)	|	![Github Stars](https://img.shields.io/github/stars/kuberhealthy/kuberhealthy)	|
 |	18	|	kurt  	|	[ A Kubernetes plugin that gives context to what is restarting in your Kubernetes cluster ](https://github.com/soraro/kurt)	|	![Github Stars](https://img.shields.io/github/stars/soraro/kurt)	|
 |	19	|	KlusterView  	|	[ Get instant insights on your Kubernetes clusters with our lightweight, plug-and-play performance monitoring tool  ](https://github.com/oslabs-beta/KlusterView)	|	![Github Stars](https://img.shields.io/github/stars/oslabs-beta/KlusterView)	|
+|	20	|	X.509 Certificate Exporter	|	[	Watch certificates for expiration in Kubernetes Secrets and control-plane files. Alerts and dashboard available.](https://github.com/enix/x509-certificate-exporter/)	|	![Github Stars](https://img.shields.io/github/stars/enix/x509-certificate-exporter)	|
 
 
 ## Logging and Tracing