Create SETUP.md
Create SETUP.md

Add extra instructions for submitting exercises.
Peque/xpython,pombredanne/xpython,mweb/python,N-Parsons/exercism-python,oalbe/xpython,outkaj/xpython,wobh/xpython,Peque/xpython,outkaj/xpython,wobh/xpython,smalley/python,exercism/python,de2Zotjes/xpython,exercism/python,rootulp/xpython,smalley/python,ZacharyRSmith/xpython,exercism/xpython,rootulp/xpython,pheanex/xpython,jmluy/xpython,mweb/python,N-Parsons/exercism-python,behrtam/xpython,pombredanne/xpython,ZacharyRSmith/xpython,pheanex/xpython,orozcoadrian/xpython,de2Zotjes/xpython,exercism/xpython,oalbe/xpython,jmluy/xpython,behrtam/xpython,orozcoadrian/xpython