diff --git a/README.md b/README.md
index 123def2..1b2c17a 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,12 @@ var sorcery = require( 'sorcery' );
 
 sorcery.load( 'some/generated/code.min.js' ).then( function ( chain ) {
   // generate a flattened sourcemap
-  var map = chain.apply(); // { version: 3, file: 'code.min.js', ... }
+  var map = chain.apply({
+    // the root path of all source paths (default: process.cwd())
+    base: process.cwd(),
+    // include `sourcesContent` in final map (default: true)
+    includeContent: false,
+  }); // { version: 3, file: 'code.min.js', ... }
 
   // get a JSON representation of the sourcemap
   map.toString(); // '{"version":3,"file":"code.min.js",...}'