Add support for inverting tags

Author: Strokkur424

src/assets/mm.tmLanguage.json

@@ -4,7 +4,7 @@
   "patterns": [
     {
       "name": "meta.tag.mm",
-      "begin": "(<)(/?)([a-zA-Z0-9_]+)",
+      "begin": "(<)(/?|!?)([a-zA-Z0-9_]+)",
       "beginCaptures": {
         "1": { "name": "constant.language.tag.mm" },
         "2": { "name": "constant.language.tag.mm" },

src/content/docs/adventure/minimessage/format.mdx

@@ -35,3 +35,7 @@ Hello <selector:@e[limit=5]>, I'm <selector:@s>!
 ```mm
 <nbt:block|entity|storage:id:path[:_separator_][:interpret]>
 ```
+
+```mm
+<!i>This lore shall not be italicized!
+```