move language and work docs and pictures from arc content repo
add a gitignore for .idea dir
Update README.md

remove link to obsolete trello board
on second thoughts the work stuff is all non-normative at the moment and belongs on the hackpad
clean up the definitions for hosting and estate a little.
remove .idea editor specific ignore
Fix style issues
Use literal en-dash
Update README.md - recipes

Remove broken reference to recipes. We will add recipes in a later iteration
Update README.md

Reference to 'designing transactions' removed - relates to renamed piece of service manual content that may not be relevant now.
Merge pull request #1 from alphagov/move-public-stuff-from-architecture-content

Move public stuff from architecture content