OP#496 add config example and update Readme

README.md

@@ -6,6 +6,7 @@
 - [README](#readme)
   - [Purpose](#purpose)
   - [Download](#download)
+  - [Configuration](#configuration)
   - [Contact Us](#contact-us)
 
 ## Purpose
@@ -18,7 +19,13 @@
 
 [confdroid_pgbouncer:latest](https://sourcecode.confdroid.com/confdroid/-/packages/container/confdroid_pgbouncer/latest)
 
+## Configuration
+
+The container takes its configuration via config map and secrets.
+
+- see [example config](docs/example_config.yaml)
+
 ## Contact Us
 
 - [contact form](https://confdroid.com/contact/)
-- [feedback portal](https://feedback.confdroid.com/)
+- [feedback portal](https://feedback.confdroid.com/)