Update docs

packages/nginx_ingress_controller/docs/README.md

@@ -113,6 +113,8 @@ An example event for `access` looks as following:
 | data_stream.type | Data stream type. | constant_keyword |
 | ecs.version | ECS version | keyword |
 | event.created | Date/time when the event was first read by an agent, or by your pipeline. | date |
+| event.dataset | Event dataset | constant_keyword |
+| event.module | Event module | constant_keyword |
 | host.architecture | Operating system architecture. | keyword |
 | host.containerized | If the host is a container. | boolean |
 | host.domain | Name of the domain of which the host is a member. For example, on Windows this could be the host's Active Directory domain or NetBIOS domain name. For Linux this could be the domain of the host's LDAP provider. | keyword |
@@ -281,6 +283,8 @@ An example event for `error` looks as following:
 | data_stream.namespace | Data stream namespace. | constant_keyword |
 | data_stream.type | Data stream type. | constant_keyword |
 | ecs.version | ECS version | keyword |
+| event.dataset | Event dataset | constant_keyword |
+| event.module | Event module | constant_keyword |
 | host.architecture | Operating system architecture. | keyword |
 | host.containerized | If the host is a container. | boolean |
 | host.domain | Name of the domain of which the host is a member. For example, on Windows this could be the host's Active Directory domain or NetBIOS domain name. For Linux this could be the domain of the host's LDAP provider. | keyword |