Update networking.md

explanation/intro-to/networking.md

@@ -25,9 +25,9 @@ There are two DHCP servers available on Ubuntu. We have instructions on how to {
 
 ### Time synchronisation
 
-Synchronising time over a network is handled by the Network Time Protocol (NTP). It is a networking protocol that syncronises time between all computers on a network to within a few milliseconds of Coordinated Universal Time (UTC). This explanation guide will tell you {ref}`more about time synchronisation <about-time-synchronisation>`.
+Synchronising time over a network is handled by the Network Time Protocol (NTP). It is a networking protocol that synchronises time between all computers on a network to within a few milliseconds of Coordinated Universal Time (UTC). This explanation guide will tell you [more about time synchronisation](../networking/about-time-synchronisation.md).
 
-In Ubuntu, time synchronisation is primarily handled by `timedatectl` and `timesyncd`, which are installed by default as part of `systemd`. To find out how to configure this service, {ref}`read our how-to guide <timedatectl-and-timesyncd>`.
+In Ubuntu, time synchronisation is primarily handled by `timedatectl` and `timesyncd`, which are installed by default as part of `systemd`. To find out how to configure this service, [read our how-to guide](../../how-to/networking/timedatectl-and-timesyncd.md).
 
 If you want to set up a server to *provide* NTP information, then we have a guide on {ref}`how to serve NTP using chrony <serve-ntp-with-chrony>`.