use mit a more open license

Author: 3swordman

Cargo.toml

@@ -92,7 +92,7 @@ nested:
 
 ## License
 
-GPL-3.0-or-later
+MIT
 
 ## Links
 

LICENSE

@@ -1,7 +1,7 @@
 /**
  * @file TOON (Token-Oriented Object Notation) grammar for tree-sitter
  * @author 3swordman <yyuxiaoran@qq.com>
- * @license GPL-3.0-or-later
+ * @license MIT
  * @see {@link https://github.com/toon-format/spec TOON Specification v2.0}
  */
 

README.md

@@ -6,16 +6,14 @@
       "camelcase": "Toon",
       "title": "Toon",
       "scope": "source.toon",
-      "file-types": [
-        "toon"
-      ],
+      "file-types": ["toon"],
       "injection-regex": "^toon$",
       "class-name": "TreeSitterToon"
     }
   ],
   "metadata": {
     "version": "0.1.3",
-    "license": "GPL-3.0-or-later",
+    "license": "MIT",
     "description": "Toon grammar for tree-sitter",
     "authors": [
       {