change link to https://github.com/ircam-ismm migrated organisation

Author: diemoschwarz

Max_LIBRARIES.md

@@ -1,3 +1,4 @@
 Collections of patches for [Cycling74](http://cycling74.com/)'s [Max](https://cycling74.com/products/max) environment.
 
-* [catart-mubu](https://github.com/Ircam-RnD/catart-mubu) patches for CataRT-style corpus-based concatenative synthesis based on the [MuBu library](http://ismm.ircam.fr/mubu/)
+* [catart-mubu](https://github.com/ircam-ismm/catart-mubu) patches for CataRT-style corpus-based concatenative synthesis based on the [MuBu library](http://ismm.ircam.fr/mubu/)
+* [Gestural Sound Toolkit](https://github.com/ircam-ismm/Gestural-Sound-Toolkit) for gesture-to-sound scenario prototyping.