Add ContainerLab and PWRU

Add https://containerlab.dev/
Add https://github.com/cilium/pwru

README.md

@@ -81,6 +81,7 @@ by James Forshaw.
 * [NetworkMiner](https://www.netresec.com/?page=NetworkMiner) - A network forensic tool for PCAP file analysis.
 * [Malware-Traffic-Analysis.net](https://malware-traffic-analysis.net/) - A large collection of malicious PCAP files that can be used to practice packet capture skills.
 * [Publicly Available PCAP files](https://www.netresec.com/?page=PcapFiles) - A list of publicly available PCAP files for additional training.
+* [PWRU (Packet, where are you?)](https://github.com/cilium/pwru) - eBPF-based Linux kernel networking debugger.
 
 ### Network simulators and emulators
 
@@ -89,6 +90,7 @@ by James Forshaw.
 * [EVE-NG](https://www.eve-ng.net/) - A powerful network simulator. Both Community and Professional editions are available.
 * [Cisco Modeling Labs](https://www.cisco.com/c/en/us/products/cloud-systems-management/modeling-labs/index.html) - An online platform that helps network engineers simulate the behavior of Cisco routers, switches, and access points. It is intended for customers from enterprise backgrounds.
 * [Cisco Virtual Internet Routing Lab (VIRL)](https://learningnetwork.cisco.com/s/virl) - It is a Cisco IOS-based comprehensive network simulation environment. It is intended for all individuals and trainees.
+* [ContainerLab](https://containerlab.dev/) - A tool to build network topologies using containers.
 
 ### Firewalls and switches