Proper formating of README.md
Merge pull request #4 from clementhelsens/formatREADME

Proper formating of README.md
Adding the DDG4Dict.C in the repository
modify the README.md accordingly to the new instructions
remove the G4 export as they are now made from the afs setup.sh
Merge pull request #5 from clementhelsens/formatREADME2

Clean setup