added missing include for http

EXTRAS/example-configurations/ejabberd.yml

@@ -16,5 +16,6 @@ include_config_file:
   - /home/ejabberd/conf/conf.d/32-access.yml
   - /home/ejabberd/conf/conf.d/41-s2s.yml
   - /home/ejabberd/conf/conf.d/42-c2s.yml
+  - /home/ejabberd/conf/conf.d/43-http.yml
   - /home/ejabberd/conf/conf.d/50-stun-turn.yml
   - /home/ejabberd/conf/conf.d/60-modules.yml