cii badge

Signed-off-by: Gaurav Gahlot <gauravgahlot0107@gmail.com>

README.md

@@ -3,6 +3,7 @@
 [![Build Status](https://cloud.drone.io/api/badges/tinkerbell/tink/status.svg)](https://cloud.drone.io/tinkerbell/tink)
 [![codecov](https://codecov.io/gh/tinkerbell/tink/branch/master/graph/badge.svg)](https://codecov.io/gh/tinkerbell/tink)
 ![](https://img.shields.io/badge/Stability-Experimental-red.svg)
+[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/4512/badge)](https://bestpractices.coreinfrastructure.org/projects/4512)
 
 This repository is [Experimental](https://github.com/packethost/standards/blob/master/experimental-statement.md) meaning that it's based on untested ideas or techniques and not yet established or finalized or involves a radically new and innovative style! This means that support is best effort (at best!) and we strongly encourage you to NOT use this in production.