added .json extension (#120)

sorry I thought this was automatically added...

plugins/Autodafe-REDs → plugins/Autodafe-REDs.json

@@ -2,7 +2,7 @@
   "slug": "Autodafe-REDs",
   "name": "Autodafe - REDs",
   "author": "Autodafe",
-  "version": "0.5.1",
+  "version": "0.5.2",
   "homepage": "https://www.autodafe.net/virtual-instruments/vcv-rack-modules/autodafe-reds-modules-for-vcv-rack.html",
   "manual": "https://www.autodafe.net/media/com_eshop/attachments/autodafe-reds-collection-manual.pdf"