Update 2.3.-AI-Setup.md

Author: qwertygc

docs/doc/en/2.3.-AI-Setup.md

@@ -32,6 +32,7 @@ In QualCoder, you can choose between different AI Large Language Models and even
     * Blablador is free to use, but still requires a personal API key from the Helmholtz Society. You can sign up with your university account or with GitHub, Google, or ORCID. Follow the instructions here: [https://sdlaml.pages.jsc.fz-juelich.de/ai/guides/blablador_api_access/](https://sdlaml.pages.jsc.fz-juelich.de/ai/guides/blablador_api_access/).
 
 !!! warning
+
    As of November 2025, if you are using QualCoder 3.7 or lower, you must update your config.ini file in order to regain access to Blablador. This is because the service has switched to a new, more powerful server. Follow these steps to point QualCoder to the new server
    - Close QualCoder
    - Open the file `config.ini` in the QualCoder settings folder.