🐛 Fix pack.mcmeta

Fix #40.

Author: SPGoding

src/pack.mcmeta.json

@@ -4,14 +4,13 @@
     "$id": "https://raw.githubusercontent.com/SPGoding/datapack-json/master/src/pack.mcmeta.json",
     "title": "Resource pack information",
     "description": "Information about a resource pack",
-    "additionalProperties": false,
     "defaultSnippets": [
         {
             "label": "Default (data) pack.mcmeta",
             "body": {
                 "pack": {
                     "description": "${1:${TM_DIRECTORY/(?:.*[\\\\/])?([^\\\\/]*)/$1/}}: $2",
-                    "pack_format": 4
+                    "pack_format": 5
                 }
             }
         }
@@ -23,10 +22,10 @@
             "description": "Information about the datapack",
             "properties": {
                 "pack_format": {
-                    "default": 4,
+                    "default": 5,
                     "type": "integer",
                     "title": "Datapack version",
-                    "description": "This is 4 for 1.13"
+                    "description": "This is 4 for 1.13, 5 for 1.15"
                 },
                 "description": {
                     "$ref": "./shared/text_component.json#",