docs(README.md): update plugin registry table

Signed-off-by: poiana <[email protected]>

README.md

@@ -45,7 +45,7 @@ The tables below list all the plugins currently registered. The tables are autom
 <!-- REGISTRY:SOURCE-TABLE -->
 | ID | Name | Event Source | Description | Info |
 | --- | --- | --- | --- | --- |
-| 1 | k8s_audit | `k8s_audit` | Reserved for a future back-port of Falco's k8s_audit event source as a plugin | Authors: N/A <br/> License: N/A |
+| 1 | [k8saudit](https://github.com/falcosecurity/plugins/tree/master/plugins/k8saudit) | `k8s_audit` | Read Kubernetes Audit Events and monitor Kubernetes Clusters | Authors: [The Falco Authors](https://falco.org/community) <br/> License: Apache-2.0 |
 | 2 | [cloudtrail](https://github.com/falcosecurity/plugins/tree/master/plugins/cloudtrail) | `aws_cloudtrail` | Reads Cloudtrail JSON logs from files/S3 and injects as events | Authors: [The Falco Authors](https://falco.org/community) <br/> License: Apache-2.0 |
 | 3 | [dummy](https://github.com/falcosecurity/plugins/tree/master/plugins/dummy) | `dummy` | Reference plugin used to document interface | Authors: [The Falco Authors](https://falco.org/community) <br/> License: Apache-2.0 |
 | 4 | [dummy_c](https://github.com/falcosecurity/plugins/tree/master/plugins/dummy_c) | `dummy_c` | Like Dummy, but written in C++ | Authors: [The Falco Authors](https://falco.org/community) <br/> License: Apache-2.0 |