[docs-only] Services using the event bus need a readme.md update

[mmattel]

References: owncloud/docs-ocis#734 (Update caching and persistence)

The event bus config description is missing in some services readme, for a text suggestion see the referenced docs-ocis PR.

find . -path '**/pkg/config' -exec grep -rn OCIS_EVENTS_AUTH_USERNAME {} \; | sort

./antivirus/pkg/config/config.go:57:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;ANTIVIRUS_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./audit/pkg/config/config.go:32:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;AUDIT_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./clientlog/pkg/config/config.go:38:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;CLIENTLOG_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./eventhistory/pkg/config/config.go:57:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;EVENTHISTORY_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./frontend/pkg/config/config.go:175:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;FRONTEND_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./graph/pkg/config/config.go:124:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;GRAPH_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./notifications/pkg/config/config.go:59:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;NOTIFICATIONS_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./policies/pkg/config/config.go:57:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;POLICIES_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./postprocessing/pkg/config/config.go:44:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;POSTPROCESSING_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./search/pkg/config/search.go:14:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;SEARCH_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./sharing/pkg/config/config.go:156:	AuthUsername      string `yaml:"auth_username" env:"OCIS_EVENTS_AUTH_USERNAME;SHARING_EVENTS_AUTH_USERNAME" desc:"Username for the events broker."`
./sse/pkg/config/config.go:54:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;SSE_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./storage-users/pkg/config/config.go:180:	AuthUsername      string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;STORAGE_USERS_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`
./userlog/pkg/config/config.go:59:	AuthUsername         string `yaml:"username" env:"OCIS_EVENTS_AUTH_USERNAME;USERLOG_EVENTS_AUTH_USERNAME" desc:"The username to authenticate with the events broker. The events broker is the ocis service which receives and delivers events between the services."`

@kobergj @micbar

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 10 days if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 10 days if no further activity occurs. Thank you for your contributions.

[kobergj]

This doesn't need to be done by dev necessarily. But if it gets stale again we'll close it ;)

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed in 10 days if no further activity occurs. Thank you for your contributions.