Add ygor.

A promising task runner. Fills a gap between `npm run` and tools like `gulp` and `grunt`. Promotes `async` and `await` for flow control.

https://github.com/shannonmoeller/ygor

readme.md

@@ -252,6 +252,7 @@
 - [strong-build](https://github.com/strongloop/strong-build) - Build a node app package and prepare to deploy it as a package to production or use git to commit to a deploy branch.
 - [grunt](http://gruntjs.com) - Task runner that can perform repetitive tasks like minification, compilation, unit testing, linting, etc.
 - [start](https://github.com/start-runner/start) - Simple tasks runner powered by composable functions and promise chaining.
+- [ygor](https://github.com/shannonmoeller/ygor) - A promising task runner for when `npm run` isn't enough and everything else is too much.
 
 
 ### Hardware