chore(fs-watch) Update Usage (#451)

plugins/fs-watch/README.md

@@ -57,7 +57,7 @@ import { watch, watchImmediate } from "tauri-plugin-fs-watch-api";
 const stopWatching = await watch(
   "/path/to/something",
   (event) => {
-    const { type, payload } = event;
+    const { kind, path } = event;
   },
   { recursive: true }
 );
@@ -65,7 +65,7 @@ const stopWatching = await watch(
 const stopRawWatcher = await watchImmediate(
   ["/path/a", "/path/b"],
   (event) => {
-    const { path, operation, cookie } = event;
+    const { type, paths, attrs } = event;
   },
   {}
 );