fix: update readme

README.md

@@ -54,20 +54,19 @@ $ yarn add depcheck-detector-execa
 Custom detectors are currently only supported when using `depcheck` via the Node.js API. Simply add the detector to your depcheck config and run depcheck:
 
 ```js
-import depcheck from 'depcheck'
-import execaDetector from 'depcheck-detector-execa'
+const depcheck = require('depcheck')
+const execaDetector = require('depcheck-detector-execa')
 
 const options = {
   detectors: [
     execaDetector,
   ],
 }
 
-depcheck('/path/to/your/project', options, (unused) => {
+depcheck(process.cwd(), options, unused => {
   console.log(unused.dependencies); // an array containing the unused dependencies
   console.log(unused.devDependencies); // an array containing the unused devDependencies
   console.log(unused.missing); // a lookup containing the dependencies missing in `package.json` and where they are used
-  console.log(unused.using); // a lookup indicating each dependency is used by which files
   console.log(unused.invalidFiles); // files that cannot access or parse
   console.log(unused.invalidDirs); // directories that cannot access
 })