Merge pull request #5672 from gooddata/dp-2566-mapbox-doc-update

TRIVIAL: geo pushpin token doc clarification

docs/content/en/latest/references/visual_components/geo_pushpin_chart.md

@@ -9,6 +9,12 @@ A **geo pushpin chart** visualizes data broken down by geographic region across
 
 {{< embedded-image alt="Geo Pushpin Chart" src="/gd-ui/geo_pushpin_chart.png" >}}
 
+## Access Token Requirement
+
+When using geo pushpin charts in a dashboard or the Analytical Designer within GoodData Cloud’s main web application—or when these are embedded directly via an iframe—access tokens are provided automatically, ensuring seamless functionality without user intervention.
+
+However, when implementing geo pushpin charts in a custom GoodData.UI application (i.e. within the `DashboardView`, `InsightView`, or `GeoPushpinChart` components), you must [provide your own Mapbox access token](https://docs.mapbox.com/help/how-mapbox-works/access-tokens/). This token should be specified in the [mapboxToken property](#properties).
+
 ## Structure
 
 ```jsx