Update random_hover.json

Updated description
Removed undocumented comment

source/behavior/entities/format/behaviors/random_hover.json

@@ -8,10 +8,9 @@
     "priority": { "$ref": "types/priority.json" },
     "speed_multiplier": { "$ref": "types/speed_multiplier.json" },
     "hover_height": {
-      "type": "array",
-      "description": "The range of height in blocks above the surface which the mob will try to hover.",
-      "$comment": "UNDOCUMENTED",
       "title": "Hover Height",
+      "type": "array",
+      "description": "The height above the surface which the mob will try to maintain",
       "items": [
         {
           "type": "number"