update development docs with parser changes
update development docs with parser changes

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