Explicit example of parsing args from main
diff --git a/README.md b/README.md
index d51f7cb..211c5dc 100644
--- a/README.md
+++ b/README.md
@@ -69,7 +69,14 @@
 
     var results = parser.parse(['some', 'command', 'line', 'args']);
 
-These arguments usually come from the arguments to `main()`, but you can pass in
+These arguments usually come from the arguments to `main()`. For example:
+
+    main(List<String> args) {
+      // ...
+      var results = parser.parse(args);
+    }
+
+However, you can pass in
 any list of strings. The `parse()` method returns an instance of [ArgResults][],
 a map-like object that contains the values of the parsed options.