[doc]: Update README.md (#6358)

README.md

@@ -1,14 +1,16 @@
 # Software for Open Networking in the Cloud - SONiC
 
-# Description
-Management and automation code used for SONiC testbed deployment, tests and reporting.
-
-# CII Best Practices
+# sonic-mgmt
 [![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/3933/badge)](https://bestpractices.coreinfrastructure.org/projects/3933)
+[![Language grade: Python](https://img.shields.io/lgtm/grade/python/g/sonic-net/sonic-mgmt.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/sonic-net/sonic-mgmt/context:python)
+
+### Description
+Management and automation code used for SONiC testbed deployment, tests and reporting.
 
 # Contribution guide
-All contributors must sign a contribution license agreement before contributions can be accepted.
-[How to become a contributer](https://github.com/sonic-net/SONiC/wiki/Becoming-a-contributor)
+Please read the [contributor guide](https://github.com/sonic-net/SONiC/wiki/Becoming-a-contributor) for more details on how to contribute.
+
+All contributors must sign an [Individual Contributor License Agreement (ICLA)](https://docs.linuxfoundation.org/lfx/easycla/v2-current/contributors/individual-contributor) before contributions can be accepted. Visit [EasyCLA - Linux Foundation](https://docs.linuxfoundation.org/lfx/easycla) for more details.
 
 ### GitHub Workflow
 
@@ -43,4 +45,4 @@ For example:
 * Use issues to keep track of what is going on
 
 # Documentation
-[Documentation](docs/README.md)
+For more details on each component and the directory structure, please read [docs/README.md](docs/README.md)