add topics to leap problem in config.json
add topics to leap problem in config.json

smalley/python,rootulp/xpython,rootulp/xpython,exercism/python,mweb/python,behrtam/xpython,pheanex/xpython,N-Parsons/exercism-python,smalley/python,exercism/python,exercism/xpython,pheanex/xpython,jmluy/xpython,mweb/python,N-Parsons/exercism-python,jmluy/xpython,behrtam/xpython,exercism/xpython