improved jedi docstring, better basic description
improved jedi docstring, better basic description

mfussenegger/jedi,dwillmer/jedi,flurischt/jedi,jonashaag/jedi,tjwei/jedi,mfussenegger/jedi,flurischt/jedi,dwillmer/jedi,WoLpH/jedi,tjwei/jedi,WoLpH/jedi,jonashaag/jedi