Include Projects using CVAT section, add Onepanel (#2358)

README.md

@@ -122,3 +122,6 @@ Other ways to ask questions and get our support:
 - [Intel AI blog: New Computer Vision Tool Accelerates Annotation of Digital Images and Video](https://www.intel.ai/introducing-cvat)
 - [Intel Software: Computer Vision Annotation Tool: A Universal Approach to Data Annotation](https://software.intel.com/en-us/articles/computer-vision-annotation-tool-a-universal-approach-to-data-annotation)
 - [VentureBeat: Intel open-sources CVAT, a toolkit for data labeling](https://venturebeat.com/2019/03/05/intel-open-sources-cvat-a-toolkit-for-data-labeling/)
+
+## Projects using CVAT
+- [Onepanel](https://github.com/onepanelio/core) - Onepanel is an open source vision AI platform that fully integrates CVAT with scalable data processing and parallelized training pipelines.