Address review

Author: lhstrh

docs/reference/docker-support.mdx

@@ -234,10 +234,10 @@ The above run command can include any supported command-line arguments to the LF
 docker run -t --rm foo --timeout 20 sec
 ```
 
-### Manually launching a federation
+#### Manually launching a federation
 In addition to building the images and running each individual container, launching a federation requires a few additional steps.
 
-#### Create a network and launch RTI
+##### Create a network and launch RTI
 To pull the RTI from DockerHub, run this command:
 ```sh
 docker pull lflang/rti:rti