Add golfing languages

[angrykoala]

Golfing languages attempt to solve problems in the less strokes possible:

• http://www.golfscript.com/golfscript/
• https://github.com/DennisMitchell/jellylanguage
• https://github.com/ETHproductions/japt

Articles, contests or webpages related to golfing languages would also be a welcome addition

[angrykoala]

Related resources:

• http://golf.shinh.org/
• https://codegolf.stackexchange.com/
• http://wiki.c2.com/?ShortestWikiContest
• https://github.com/ETHproductions/golfing-langs
• https://alf.nu/RegexGolf