chane the grobid model directory to be ignored in future commits
chane the grobid model directory to be ignored in future commits


Former-commit-id: f275a16e905e04d51a0c5542d266737eff5e18e1
kermitt2/grobid,kermitt2/grobid,kermitt2/grobid,kermitt2/grobid,kermitt2/grobid,kermitt2/grobid