chore: update categories in Cargo.toml

Cargo.toml

@@ -6,7 +6,7 @@ authors = ["Hung-I Wang <[email protected]>"]
 license = "GPL-2.0-or-later"
 repository = "https://github.com/Gowee/zhconv-rs"
 description = "Traditional/Simplified and regional Chinese variants converter based on MediaWiki conversion rules and powered by AC automata  轉換中文簡體、繁體及兩岸、新馬地區詞，基於MediaWiki之字詞轉換表"
-categories = ["text-processing", "localization", "value-formatting"]
+categories = ["text-processing", "localization", "value-formatting", "wasm"]
 
 [lib]
 crate-type = ["cdylib", "rlib"]