Add instructions for releasing a new version

Removed the changelog since it's not up to date

See https://github.com/CouscousPHP/Couscous/releases instead

Merge CouscousPHP#101 manually

Make sure that hidden files are taken into account (e.g. .nojekyll)

Merge pull request CouscousPHP#103 from RossJHagan/init-template

adds an init:template command (fix CouscousPHP#40)

Fixes path problems when running as phar

Merge pull request CouscousPHP#85 from CouscousPHP/template-readthedocs

New template: Read The Docs

Added tags to templates to know the features of each one

Added tests

Merge pull request CouscousPHP#43 from CouscousPHP/website-templates

Added a "Templates" page to the website