Update README.md

README.md

@@ -20,6 +20,8 @@ To train neural networks from scratch, using our large dataset of preprocessed v
 
 This source code is released under [Apache 2.0 License](https://github.com/stanfordnmbl/mobile-gaitlab/blob/master/LICENSE).
 
+Our software relies on [OpenPose](https://github.com/CMU-Perceptual-Computing-Lab/openpose) under [a custom non-commercial license](https://github.com/CMU-Perceptual-Computing-Lab/openpose/blob/master/LICENSE). Other libraries are under permissive open source licenses. For specific licenses please refer to maintainers of packages listed in our [requirements file](https://github.com/stanfordnmbl/mobile-gaitlab/blob/master/requirements.txt). If you intend to use our software it's your obligation to make sure you comply with licensing terms of all linked software.
+
 Processed video trajectories available [here](https://simtk.org/frs/?group_id=1918) are available under [CC BY-NC 2.0](https://creativecommons.org/licenses/by-nc/2.0/) license.
 
 [The original video file used in the demo](https://github.com/stanfordnmbl/mobile-gaitlab/blob/master/demo/in/input.mp4) is provided by courtesy of [Gillette Children's Specialty Healthcare](https://www.gillettechildrens.org/) and should not be used for anything else than testing this repository without a written permission from the hospital.