Merge pull request #89 from NETWAYS/chore/docs

Mention removal of Grafana Image Renderer in Grafana 13

Author: martialblog

doc/02-installation.md

@@ -14,6 +14,8 @@ to the latest version, please [read on here](05-update.md).
 
 The Grafana Image Renderer handles rendering panels and dashboards to PNGs using a headless browser (Chromium).
 
+**Note:** Grafana Image Renderer was deprecated in September 2025 and removed in Grafana 13.
+
 A data source as a backend for Grafana. Either:
 
 * [InfluxDB](https://docs.influxdata.com/influxdb/) (>= 1.0)

doc/03-module-configuration.md

@@ -138,6 +138,8 @@ This will speed up the page load, but the image will take some seconds to show u
 Pro: Very fast page loading, very secure.
 Contra: Images take some seconds to show up.
 
+**Note:** Grafana Image Renderer was deprecated in September 2025 and removed in Grafana 13.
+
 #### iframe
 In iframe mode you have the full power of Grafana features like mouse over tool tip.
 Pro: All features from Grafana enabled. Fast page rendering.