gbap: add missing doc link

Author: jcelerier

GBAP/GBAPModel.hpp

@@ -19,6 +19,13 @@ class GBAP
   halp_meta(category, "Control/Spatialization")
   halp_meta(c_name, "GBAP")
   halp_meta(uuid, "81DB0C30-175B-422E-8C5F-87569D50548E")
+  halp_meta(
+      author,
+      "Pía Baltazar, Ahmed El Moudden, Sarah Al Mamoun, Jean-Michaël Celerier, Société "
+      "des Arts Technologiques");
+  halp_meta(
+      description, "Grid-based value ponderation, useful for sound spatialization.");
+  halp_meta(manual_url, "https://ossia.io/score-docs/processes/gbap.html")
 
   struct ins
   {

MultiCursor/MultiCursorModel.hpp

@@ -17,10 +17,9 @@ class MultiCursorManager
   halp_meta(category, "Control/Spatialization")
   halp_meta(description, "Can generate a position table")
   halp_meta(manual_url, "https://ossia.io/score-docs/processes/multicursor.html")
-  halp_meta(author, "Ahmed El Moudden")
+  halp_meta(author, "Ahmed El Moudden, Société des Arts Technologiques")
   halp_meta(uuid, "20f771a1-0e9a-4db2-bb7c-011467d84ded")
 
-
   struct ins
   {
     struct

PathGenerator/PathGeneratorModel.hpp

@@ -15,7 +15,7 @@ class PathGenerator {
   halp_meta(category, "Control/Spatialization")
   halp_meta(description, "This process generates points that move dynamically along a given trajectory.")
   halp_meta(manual_url, "https://ossia.io/score-docs/processes/pathgenerator.html")
-  halp_meta(author, "Ahmed El Moudden")
+  halp_meta(author, "Ahmed El Moudden, Société des Arts Technologiques")
   halp_meta(uuid, "95a53434-276a-42a3-bb6b-ee92462b9640")
 
   struct ins {