docs: add brace expansion example to CLI usage

Author: johnsoncodehk

README.md

@@ -116,6 +116,9 @@ npx tsslint --project path/to/tsconfig.json --fix
 
 # Lint multiple projects
 npx tsslint --project 'packages/*/tsconfig.json' --vue-project 'apps/web/tsconfig.json'
+
+# Using brace expansion for multiple patterns
+npx tsslint --project '{tsconfig.json,packages/*/tsconfig.json,extensions/*/tsconfig.json}'
 ```
 
 > [!TIP]