docs: add alphaPanels feature toggle information (#71480)

* add feature toggle information

* fix typo

* fixed config information
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Isabel 2023-07-12 18:04:08 -04:00 committed by GitHub
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@ -361,6 +361,13 @@ The Route layer renders data points as a route.
{{< figure src="/media/docs/grafana/geomap-route-layer-basic-9-4-0.png" max-width="1200px" caption="Geomap panel Route" >}}
To enable the Route layer, set `enable_alpha` to `true` in your configuration file:
```
[panels]
enable_alpha = true
```
### Options
- **Size** sets the route thickness. Fixed by default, or Min and Max range of selected field.
@ -382,6 +389,13 @@ The Photos layer renders a photo at each data point.
{{< figure src="/static/img/docs/geomap-panel/geomap-photos-9-3-0.png" max-width="1200px" caption="Geomap panel Photos" >}}
To enable the Photos layer, set `enable_alpha` to `true` in your configuration file:
```
[panels]
enable_alpha = true
```
### Options
- **Image Source Field** select a string field containing image data in either of the following formats