Update index.md

Author: BeverlyCode

collections/voxel-editors/index.md

@@ -20,4 +20,4 @@ items:
  - simlu/voxelshop
 display_name: Voxel Editors
 ---
-Software to design and edit 3D voxel files.
+Software to design and edit 3D voxel files, this list is only for standalone software and not extensions/plugins/addons to existing software. This is list also NOT to be used to list software that is not designed to be Voxel First software. This means that software that has Voxel capabilities on the side and was not originally intended to be used for Voxel editing is not suitable for this list.