Update from upstream cg/immersive-web/repositories.json

Author: w3cbot

cg/immersive-web/repositories.json

@@ -221,7 +221,7 @@
   },
   "url": "https://github.com/immersive-web/model-element",
   "homepageUrl": "https://immersive-web.github.io/model-element/",
-  "description": "Repository for the <model> tag. Feature leads: Brandel Zachernuk and Laszlo Gombos",
+  "description": "Repository for the <model> tag. Feature leads: Brandel Zachernuk, Rik Cabanier and Laszlo Gombos",
   "isArchived": false,
   "isPrivate": false,
   "w3cjson": {