made recursive

build.js

@@ -1,6 +1,6 @@
 const fs = require('fs');
 
-fs.cp('src/index.html','build/index.html', (err) => {
+fs.cp('./src/','./build', { recursive: true }, (err) => {
 	if (err) throw err;
 	console.log('Build was successful!');
 });