move old demo to acsos page

pages/docs/index.md

@@ -17,9 +17,9 @@ is parsed.
 ## Use cases
 
 - Very simple [Load-Unload grammar](load.md) taken from the original paper [^1] to show a minimal proof-of-concept.
-- A [robotic use case](sorting.md) sorting dynamically appearing objects into boxes by colour.
+- A [robotic use case](acsos.md) sorting dynamically appearing objects into boxes by colour ([ACSOS demo]()https://2022.acsos.org/details/acsos-2022-posters-and-demos/2/Specifying-Reactive-Robotic-Applications-With-Reference-Attribute-Motion-Grammars).
   ![type:video](https://www.youtube.com/embed/KBuFVsKjA1Q)
- 
+- A similar robotic use case, but with another input "teaching" where to put the objects and different time 
 ## Bibliogaphy
 
 [^1]: Dantam, N., Stilman, M., 2013. The Motion Grammar: Analysis of a Linguistic Method for Robot Control. IEEE Trans. Robot. 29, 704–718. https://doi.org/10.1109/TRO.2013.2239553