Docs: Update zipkin.md (#30400)

docs/sources/datasources/zipkin.md

@@ -26,13 +26,15 @@ To access Zipkin settings, click the **Configuration** (gear) icon, then click *
 
 ### Trace to logs
 
-{{< docs-imagebox img="/img/docs/v74/trace-to-logs-settings.png" class="docs-image--no-shadow" caption="Screenshot of the trace to logs settings" >}}
+> **Note:** This feature is available in Grafana 7.4+.
 
 This is a configuration for the [trace to logs feature]({{< relref "../explore/index.md#trace-to-logs" >}}). Select target data source (at this moment limited to Loki data sources) and select which tags will be used in the logs query.
 
 - **Data source -** Target data source.
 - **Tags -** The tags that will be used in the Loki query. Default is `'cluster', 'hostname', 'namespace', 'pod'`.
 
+{{< docs-imagebox img="/img/docs/v74/trace-to-logs-settings.png" class="docs-image--no-shadow" caption="Screenshot of the trace to logs settings" >}}
+
 ## Query traces
 
 Querying and displaying traces from Zipkin is available via [Explore]({{< relref "../explore" >}}).