Update README.md
Appvision and User Stories + Features added
Merge branch 'Dev'
Delete Appvision - CrayCray.pdf

Finished copy in Documentation directory.
Delete Features and User Stories - CrayCray.pdf

Finished copy in Documentation directory
Merge branch 'Dev'
Merge remote-tracking branch 'origin/Dev'
Merge branch 'master' of https://github.com/Jonate/Dat255-CrayCray
Merge branch 'Dev'
added message to howtoplay-popup
added message to the howtoplay
added a new howtoplaymessage
Merge branch 'Dev' into howtoplaymessage
Merge branch 'Dev' of https://github.com/Jonate/Dat255-CrayCray into Dev