Update README.md

Author: monrax

README.md

@@ -206,6 +206,11 @@ Enable TLS for your Graylog installation, referencing the Kubernetes secret:
 helm upgrade graylog ./graylog -n graylog --reuse-values --set graylog.config.tls.byoc.enabled=true --set  graylog.config.tls.byoc.secretName="my-cert"
 ```
 
+### Enable Geolocation
+```sh
+helm upgrade graylog ./graylog -n graylog --reuse-values --set graylog.config.geolocation.enabled=true --set graylog.config.geolocation.maxmindGeoIp.enabled=true --set graylog.config.geolocation.maxmindGeoIp.accountId="<YOUR-MAXMIND-ACCOUNT-ID-HERE>" --set graylog.config.geolocation.maxmindGeoIp.licenseKey="<YOUR-MAXMIND-LICENSE-KEY-HERE>"
+```
+
 ## Uninstall
 ```sh
 # optional: scale Graylog down to zero