demos/skeletons.md

+Skeletons are program examples which needs to be completed to fit your needs; they are provided as starting points for specific usage. Available skeletons are listed here, every one has a README file explaining its purpose.
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+* [Custom reference angles](https://gitlab.utc.fr/uav-hds/flair/flair-src/-/tree/main/demos/Skeletons/CustomReferenceAngles)
+* [Custom torques](https://gitlab.utc.fr/uav-hds/flair/flair-src/-/tree/main/demos/Skeletons/CustomTorques)