Change log
* Change build command format
* See https://github.com/eqs/yacho/tree/v0.0.2
* Add sketch generator
* See https://github.com/eqs/yacho/tree/v0.0.2#sketch-generator
* Support video embedding (YouTube, Vimeo, NEORT and GIF animation)
* Example config: https://github.com/eqs/yacho/tree/v0.0.2#example-yachosketchtoml
* Extend language support (HTML, js, python, glsl, ...)