[influxdb] Update README.md (#13541)

* Update README.md

At a link for further information what to do in a persist file.

diff --git a/bundles/org.openhab.persistence.influxdb/README.md b/bundles/org.openhab.persistence.influxdb/README.md
index 6e7c5c7ce1221bf2d52e2a3eaa2dde2fd6f1e36b..b9b46294a00d8c249b32561714597ffd641eb494 100644 (file)
--- a/bundles/org.openhab.persistence.influxdb/README.md
+++ b/bundles/org.openhab.persistence.influxdb/README.md
@@ -51,6 +51,7 @@ Attention: The file-based configuration overrides the UI configuration.
 that if you use all default values at minimum you must provide a password or a token.
 
 All item- and event-related configuration is defined in the file `persistence/influxdb.persist`.
+Please consider [persistence documentation](https://www.openhab.org/docs/configuration/persistence.html#persistence) for further information.
 
 ### Additional configuration for customized storage options in InfluxDB