- Restructure page
- Add information on how to add L2TPv3 offloading support to a build
using configurable ciphers. The null method is not reocmmended anymore.
- Add notes and pointers regarding the gateway configuration to provide
gateway admins with hints on how to modify their configuration to
accommodate this new feature.
- Mention wireguard support
Based-on-patch-by: Felix Kaechele <felix@kaechele.ca>