Update time synchronization tools list with licenses

README.md

@@ -663,12 +663,11 @@ Software for management of [router](https://en.wikipedia.org/wiki/Router_(comput
 
 Time synchronization servers and clients (NTP, PTP, Roughtime).
 
-- [Chrony](https://chrony-project.org/) - A versatile implementation of the Network Time Protocol (NTP).
-- [NTPsec](https://www.ntpsec.org/) - A secure, hardened, and improved implementation of Network Time Protocol derived from NTP Classic.
-- [OpenNTPD](https://www.openntpd.org/) - A FREE, easy to use implementation of the Network Time Protocol.
-- [Roughenough](https://github.com/int08h/roughenough) - A Roughtime secure time synchronization client and server.
-- [Statime](https://github.com/pendulum-project/statime) - A Precision Time Protocol (PTP) implementation in Rust.
-
+- [Chrony](https://chrony-project.org/) - A versatile implementation of the Network Time Protocol (NTP). ([Source Code](https://gitlab.com/chrony/chrony)) `GPL-2.0` `C`
+- [NTPsec](https://www.ntpsec.org/) - A secure, hardened, and improved implementation of Network Time Protocol derived from NTP Classic. ([Source Code](https://gitlab.com/NTPsec/ntpsec)) `BSD-2-Clause/Custom` `C`
+- [OpenNTPD](https://www.openntpd.org/) - A FREE, easy to use implementation of the Network Time Protocol. ([Source Code](https://github.com/openntpd-portable/openntpd-openbsd/)) `ISC` `C`
+- [Roughenough](https://github.com/int08h/roughenough) - A Roughtime secure time synchronization client and server. `MIT/Apache-2.0` `Rust`
+- [Statime](https://github.com/pendulum-project/statime) - A Precision Time Protocol (PTP) implementation in Rust. `MIT/Apache-2.0` `Rust`
 
 ### Troubleshooting