Update README.md

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README.md

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 # Percona Backup for MongoDB
-[![Go Report Card](https://goreportcard.com/badge/github.com/percona/percona-backup-mongodb)](https://goreportcard.com/report/github.com/percona/percona-backup-mongodb) [![codecov](https://codecov.io/gh/percona/percona-backup-mongodb/branch/master/graph/badge.svg?token=TiuOmTfp2p)](https://codecov.io/gh/percona/percona-backup-mongodb) [![CLA assistant](https://cla-assistant.percona.com/readme/badge/percona/percona-backup-mongodb)](https://cla-assistant.percona.com/percona/percona-backup-mongodb)
+[![Go Report Card](https://goreportcard.com/badge/github.com/percona/percona-backup-mongodb)](https://goreportcard.com/report/github.com/percona/percona-backup-mongodb) [![CLA assistant](https://cla-assistant.percona.com/readme/badge/percona/percona-backup-mongodb)](https://cla-assistant.percona.com/percona/percona-backup-mongodb)
 
 ![PBM logo](backup-mongo.jpeg)