added badges in README (#353)

* added badges in README
Signed-off-by: Atul-source <[email protected]>

README.md

@@ -2,6 +2,10 @@
 ![L3AF_Logo](https://github.com/l3af-project/l3af-arch/blob/main/images/logos/Color/L3AF_logo.svg)
 
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/6075/badge)](https://bestpractices.coreinfrastructure.org/projects/6075)
+[![Go Report Card](https://goreportcard.com/badge/github.com/l3af-project/l3afd)](https://goreportcard.com/report/github.com/l3af-project/l3afd)
+[![GoDoc](https://godoc.org/github.com/l3af-project/l3afd?status.svg)](https://pkg.go.dev/github.com/l3af-project/l3afd)
+[![Apache licensed](https://img.shields.io/badge/license-Apache-blue.svg)](LICENSE)
+[![L3AF Slack](https://img.shields.io/badge/slack-L3AF-brightgreen.svg?logo=slack)](http://l3afworkspace.slack.com/)
 
 L3AFD is a crucial part of the L3AF ecosystem. For more information on L3AF see
 https://l3af.io/