Merge pull request #831 from finos/robmoffat-patch-2

Added OpenSSF Badge

Author: kriswest

README.md

@@ -8,6 +8,7 @@
 [![npm-build](https://github.com/finos/FDC3/workflows/npm-build/badge.svg)](https://github.com/finos/FDC3/actions?query=workflow%3Anpm-build)
 [![website-build](https://github.com/finos/FDC3/workflows/website-build/badge.svg)](https://github.com/finos/FDC3/actions?query=workflow%3Awebsite-build)
 [![Slack](https://img.shields.io/badge/slack-@finos/fdc3-green.svg?logo=slack)](https://finos-lf.slack.com/messages/fdc3/)
+[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/6579/badge)](https://bestpractices.coreinfrastructure.org/projects/6579)
 
 FDC3 aims to provide an open standard for interoperability on the financial desktop. This includes standardized verbs to invoke actions between applications (called "intents"), a standardized data format, an OpenAPI app directory standard, and standardized API operations.