Minor Readme.md correction
Minor Readme.md correction

jalavik/grobid,alexduch/grobid,alexduch/grobid,chrismattmann/grobid,Lilykos/grobid,chrismattmann/grobid,jalavik/grobid,rloth/grobid,iorala/grobid,alexduch/grobid,Lilykos/grobid,chrismattmann/grobid,k8si/grobid,Lilykos/grobid,alexduch/grobid,rloth/grobid,inspirehep/grobid,sujen1412/grobid,Lilykos/grobid,k8si/grobid,rloth/grobid,sujen1412/grobid,iorala/grobid,iorala/grobid,jalavik/grobid,inspirehep/grobid,k8si/grobid,inspirehep/grobid,inspirehep/grobid,sujen1412/grobid,chrismattmann/grobid,k8si/grobid,iorala/grobid,jalavik/grobid,sujen1412/grobid,rloth/grobid