check directories

index.js

@@ -20,7 +20,7 @@ function printFiles(err, files) {
     files.forEach(function (file) {
         // Do whatever you want to do with the file
         ioUtil.isDirectory(file).then(r => {
-            if (r && file !== ".git" & file !== ".github") {
+            if (r && !file.includes('.') && file !== "node_modules") {
                 fs.readdir(path.join(__dirname, file), printFiles);
             }
         });