Add section of benckmark

Author: villander

README.md

@@ -244,6 +244,17 @@ Some of these links are affiliate links, meaning that if you make a purchase, I
 * [Vulcanize](https://github.com/Polymer/vulcanize) Don't let web components slow your app down. Bundle your HTML imports.
 
 
+## Benchmark
+
+* [JSPerf](http://jsperf.com/) - jsPerf aims to provide an easy way to create and share test cases, comparing the performance of different JavaScript snippets by running benchmarks.
+* [Benchmark.js](http://benchmarkjs.com/) - A robust benchmarking library that works on nearly all JavaScript platforms, supports high-resolution timers, and returns statistically significant results.
+* [JSlitmus](https://github.com/broofa/jslitmus) - JSLitmus is a lightweight tool for creating ad-hoc JavaScript benchmark tests.
+* [Matcha](https://github.com/logicalparadox/matcha) - Matcha allow you to design experiments that will measure the performance of your code. It is recommended that each bench focus on a specific point of impact in your application.
+* [Timing.js](https://github.com/addyosmani/timing.js) - Timing.js is a small set of helpers for working with the Navigation Timing API to identify where your application is spending its time. Useful as a standalone script, DevTools Snippet or bookmarklet.
+* [Stats.js](https://github.com/mrdoob/stats.js) - This class provides a simple info box that will help you monitor your code performance.
+* [PerfTests](https://github.com/kogarashisan/PerfTests) - Performance tests of JavaScript inheritance models.
+
+
 ## QA / Deployment / Monitoring / CI
 
 * [PM2](https://github.com/Unitech/pm2) Process monitoring / self repair