message: Note default ServerURL config in kroki how-to
diff: @@ -496,6 +496,13 @@ plugins:
  - kroki
  ```
  +> Note: you will very likely want to set a `kroki` `ServerURL` configuration in your
  +> `mkdocs.yml` as well. The default value is the publicly hosted `kroki.io`. If
  +> you have sensitive information in your organization's diagrams, you should set
  +> up a [server of your own](https://docs.kroki.io/kroki/setup/install/) and use it
  +> instead. Check out [mkdocs-kroki-plugin config](https://github.com/AVATEAM-IT-SYSTEMHAUS/mkdocs-kroki-plugin#config)
  +> for more plugin configuration details.
  +
  4. **Add mermaid code into techdocs:**
  ````md
  