added ossf-scorecard badge (#480)

Added openssf-scorecard badge to display the openssf score in the
README.md itself to improve [LFInsights
score](https://insights.lfx.linuxfoundation.org/foundation/ena/overview?project=ena&bestPractice=false)

Signed-off-by: Ved Ratan <[email protected]>

README.md

@@ -5,11 +5,21 @@ deploying and managing highly distributed, interconnected workloads such as 5G
 Network Functions, and the underlying infrastructure on which those workloads
 depend.
 
+
+[![OpenSSF Scorecard](https://api.securityscorecards.dev/projects/github.com/nephio-project/nephio/badge)](https://securityscorecards.dev/viewer/?uri=github.com/nephio-project/nephio)
+
+The R1 Release is now available! To get started with Nephio, view the [docs repo](https://github.com/nephio-project/docs) 
+which contains the [R1 Demo installation instructions](https://github.com/nephio-project/docs/blob/main/install-guide/README.md) 
+and [Quick start exercises](https://github.com/nephio-project/docs/blob/main/user-guide/exercises.md). 
+An announcement from The Linux Foundation regarding the release can be found 
+[here](https://www.linuxfoundation.org/press/nephio-community-gains-momentum-with-release-1-to-simplify-cloud-native-network-automation).
+
 To get started with Nephio, view the [documentation website](https://docs.nephio.org/docs/)
 which contains the [Demo installation instructions](https://docs.nephio.org/docs/guides/install-guides/) 
 and Quick Start Exercises for [Free5GC](https://docs.nephio.org/docs/guides/user-guides/exercise-1-free5gc/)
 and [OAI](https://docs.nephio.org/docs/guides/user-guides/exercise-2-oai/). 
 
+
 To learn more about the Nephio project, refer to the [Learning with Nephio](https://www.youtube.com/playlist?list=PLiW9_IXAWtkt8lbFe1jF_bzEI4gd-Jlq4)
 series and it's corresponding  [wiki pages](https://wiki.nephio.org/display/HOME/Learning+with+Nephio+R1).