Add go-report-card badge to README.md
[![Build Status][ci-badge]][ci]
[![GitHub license][license-badge]](LICENSE)
+[![Go Report Card][go-report-card-badge]][go-report-card]
[![Slack Status][slack-badge]][slack]
:balloon: Welcome to Linkerd! :wave:
@@ -76,6 +77,8 @@ specific language governing permissions and limitations under the License.
[coc]: https://github.com/linkerd/linkerd/wiki/Linkerd-code-of-conduct
[getting-started]: https://linkerd.io/2/getting-started/
[golang]: https://golang.org/
+[go-report-card]: https://goreportcard.com/report/github.com/linkerd/linkerd2
+[go-report-card-badge]: https://goreportcard.com/badge/github.com/linkerd/linkerd2
[license-badge]: https://img.shields.io/github/license/linkerd/linkerd.svg
[linkerd1]: https://github.com/linkerd/linkerd
[linkerd2]: https://github.com/linkerd/linkerd2
