Update usage example

README.md

@@ -16,24 +16,41 @@
 ```js
 const metawatch = require('metawatch');
 
-const watcher = new metawatch.DirectoryWatcher({ timeout: 200 });
+const options = {
+  timeout: 200,
+  excludes: {
+    dirs: ['.git', 'node_modules'],
+    files: ['package.json'],
+    exts: ['jsx', 'ts'],
+  },
+};
+
+const watcher = new metawatch.DirectoryWatcher();
 watcher.watch('/home/marcus/Downloads');
 watcher.watch('/home/marcus/Documents');
 
 watcher.on('change', (fileName) => {
   console.log({ changed: fileName });
 });
 
-watcher.on('delete', (fileName) => {
+watcher.on('unlink', (fileName) => {
   console.log({ deleted: fileName });
 });
 
+watcher.on('unlinkDir', (dirName) => {
+  console.log({ deleted: dirName });
+});
+
 watcher.on('before', (changes) => {
-  console.log({ changes });
+  console.log({ before: changes });
 });
 
 watcher.on('after', (changes) => {
-  console.log({ changes });
+  console.log({ after: changes });
+});
+
+watcher.on('*', (change) => {
+  console.log({ change });
 });
 ```