Adds header to readme.md (#179)
Adds header to readme.md (#179)

* Adds header

* updates header link

Github hosted image now

* use commit instead of master

space-wizards/space-station-14-content,space-wizards/space-station-14-content,space-wizards/space-station-14,space-wizards/space-station-14,space-wizards/space-station-14,space-wizards/space-station-14,space-wizards/space-station-14,space-wizards/space-station-14-content,space-wizards/space-station-14