Add comment in lighttpd.conf how to change the server port

Signed-off-by: Christian König <ckoenig@posteo.de>

advanced/lighttpd.conf.debian

@@ -32,6 +32,8 @@ server.errorlog             = "/var/log/lighttpd/error-pihole.log"
 server.pid-file             = "/run/lighttpd.pid"
 server.username             = "www-data"
 server.groupname            = "www-data"
+# For lighttpd version 1.4.46 or above, the port can be overwritten in `/etc/lighttpd/external.conf` using the := operator
+# e.g. server.port := 8000
 server.port                 = 80
 accesslog.filename          = "/var/log/lighttpd/access-pihole.log"
 accesslog.format            = "%{%s}t|%V|%r|%s|%b"

advanced/lighttpd.conf.fedora

@@ -33,6 +33,8 @@ server.errorlog             = "/var/log/lighttpd/error-pihole.log"
 server.pid-file             = "/run/lighttpd.pid"
 server.username             = "lighttpd"
 server.groupname            = "lighttpd"
+# For lighttpd version 1.4.46 or above, the port can be overwritten in `/etc/lighttpd/external.conf` using the := operator
+# e.g. server.port := 8000
 server.port                 = 80
 accesslog.filename          = "/var/log/lighttpd/access-pihole.log"
 accesslog.format            = "%{%s}t|%V|%r|%s|%b"