Fix broken URL for docker-compose.yaml (#26726)

This actually fixes it. There was some attempts of it on #26721, #26695, #26711

(cherry picked from commit b4ce294)

docs/apache-airflow/howto/docker-compose/index.rst

@@ -54,10 +54,10 @@ Older versions of ``docker-compose`` do not support all the features required by
 Fetching ``docker-compose.yaml``
 ================================
 
-To deploy Airflow on Docker Compose, you should fetch `docker-compose.yaml <../docker-compose.yaml>`__.
-
 .. jinja:: quick_start_ctx
 
+    To deploy Airflow on Docker Compose, you should fetch `docker-compose.yaml <{{ doc_root_url }}docker-compose.yaml>`__.
+
     .. code-block:: bash
 
         curl -LfO '{{ doc_root_url }}docker-compose.yaml'