* Added initial contributing guide version
* Small styling improvements
* Added Styling Improvements
* Added initial version of PostCSS architecture, minor fixes to PostCSS docs
* Added API link
* Minor cleaning
* Updated doc link
* Improvement of plugins and support sections
* Minor spelling fixes
* Added test version of architecture diagram
* Renamed
* Add files via upload
* Draw architecture
* I am bad at drawing, added Tokenizer section and small cleaning
* Added general Parser overview
* Boot initial description
* Updated linking
* Added examples, fixed tokenizer desciption
* Added detailed workflow description
* Added detailed single token description, fixed spelling
* Better description
* add corresponding linking
* Minor fixes
* Continue desc
* fixed linking
* styling contrib guide
* review fixes