Try to improve own-webserver docs a bit

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/2351

docs/configuring-playbook-own-webserver.md

@@ -19,7 +19,12 @@ There are **2 ways you can go about it**, if you'd like to use your own webserve
 ## Method 1: Disabling the integrated nginx reverse-proxy webserver
 
 This method is about completely disabling the integrated nginx reverse-proxy webserver and replicating its behavior using another webserver.
-For an alternative, make sure to check Method #2 as well.
+
+If that other webserver is `nginx`, you'd be able to include configuration files generated by the playbook into your `nginx` webserver.
+
+If you'd like to use another webserver (not `nginx`), you'd need to do things manually. We have examples for other webservers below.
+
+For an alternative (which keeps `matrix-nginx-proxy` around and connects your other reverse-proxy with it), make sure to check Method #2.
 
 ### Preparation