* Remove docker guide and put it in docs repo

* Move tasks to docs repo

* Move requirements to contributing doc

* Move advice about tagged releases to docs repo

* Move local domain and host config to docs repo

* Link to related tech

* Rubocop link for Sublime Text

* Fix rubocop links

* Link to gh issues page from contributing doc

This addition to the submission guidelines requests that contributors remember to document their code. It's not a hard fast rule just a reminder.