Add CML - Cisco Modeling Labs (#131)

* Add CML - Cisco Modeling Labs

* Add description for CML training

* Correct grammar for CML Description

Co-authored-by: Ken Celenza <ken@celenza.org>

Co-authored-by: Ken Celenza <ken@celenza.org>

README.md

@@ -78,6 +78,7 @@ Network Automation is a cross between the discipline of [Network Infrastructure]
 
 # Training
 
+- [CML - Training videos @ learningnetwork.cisco.com](https://learningnetwork.cisco.com/s/cml-training-videos) - Learning and Certifications at Cisco has created a series of in-depth training videos to assist users with installing and operating Cisco Modeling Labs (CML). This video series also provides a few videos on some of the more advanced features that CML offers.
 - [GNS3 Academy - Instructor David Bombal](https://academy.gns3.com/courses/author/12794) - Offers an inexpensive set of introductions to Ansible and Python for Network Engineers, among other courses.
 - [IP Space](https://www.ipspace.net/Training) - Numerous courses, webinars, and videos covering SDN, network automation, cloud computing, virtualization technologies, IPv6, VPNs, and much more.
 - [Network to Code](https://www.networktocode.com/training/) - Network Automation Training including Python, Ansible, DevOps, and much more.
@@ -276,6 +277,7 @@ Network Automation is a cross between the discipline of [Network Infrastructure]
  - [Capirca](https://github.com/google/capirca) - Multi-platform ACL generation system; can output Juniper/IOS/etc ACLs from the same policy.
  - [Cisco Genie Parsers](https://pubhub.devnetcloud.com/media/genie-feature-browser/docs/#/parsers) - Genie Parsers by Cisco
  - [ciscoconfparse](https://github.com/mpenning/ciscoconfparse) - Parse, Audit, Query, Build, and Modify Cisco IOS-style configurations.
+ - [Cisco virl2_client](https://developer.cisco.com/docs/virl2-client/) - Documentation for the VIRL 2 (aka CML) API Client. Use this library to create Python scripts to interact with CML.
  - [EasySNMP](https://github.com/kamakazikamikaze/easysnmp) - Easy to use and very fast SNMP library that uses Net-SNMP.
  - [FreeZTP](https://github.com/PackeTsar/freeztp) - FreeZTP is an open-source Zero-Touch Provisioning system for Cisco IOS campus switches and routers.
  - [gNMIc](https://gnmic.kmrd.dev) - gNMI CLI client and collector.
@@ -354,13 +356,13 @@ Network Automation is a cross between the discipline of [Network Infrastructure]
 
 # Network Emulators
 
+ - [CML](https://www.cisco.com/c/en/us/products/cloud-systems-management/modeling-labs/index.html) - Cisco Modeling Labs (CML), which replaces VIRL, is a network emulator with both an API and GUI frontend.
  - [Container-Lab](https://github.com/srl-wim/container-lab) - Containerlab provides a framework for orchestrating networking labs with containers. It starts the containers, builds a virtual wiring between them to create lab topologies of users choice and manages labs lifecycle.
  - [EVE-NG](http://www.eve-ng.com/) - The Emulated Virtual Environment for Network, Security and DevOps professionals.
  - [GNS3](https://www.gns3.com/) - Graphical Network Simulator-3.
  - [Mininet](http://mininet.org/) - Mininet creates a realistic virtual network, running real kernel, switch and application code, on a single machine (VM, cloud or native), in seconds, with a single command.
  - [netsim-tools](https://github.com/ipspace/netsim-tools) - Brings infrastructure-as-code concepts to networking labs. You'll describe your high-level network topology and routing design in a YAML file, and the tools in this repository will create configs for VirtualBox/libvirt/containerlab, Ansible playbooks, IPv4/v6 addressing, and OSPF, EIGRP, IS-IS, BGP and SR routing design.
  - [UNetLab](https://www.routereflector.com/unetlab/) - Unified Networking Lab.
- - [VIRL](https://learningnetwork.cisco.com/groups/virl) - Cisco Virtual Internet Routing Lab.
  - [VRNetLab](https://github.com/plajjan/vrnetlab) - Run your favourite virtual routers in docker for convenient labbing, development and testing.
 
 # Network Simulators