Add initial documentation with empty files

Reference #40.
Docs: Add general purpose and how to start
Add docs content for grunt, usage, faq. Targets #40
Add docs for html, scss. t: #40
Add extend doc with examples

This targets #40.
This targets #29 showing an example implementation
of livereload task in the Gruntfile.
Fix typo
add svgo as extension
Update docs, add docs (WIP #40)
Some initial documentation for the test workflow
Update documentation about Grunt