fix misleading sentence in build docs
fix misleading sentence in build docs

Closes #2118 from cvaliente/fixBuildDocs

ibuenros/gobblin,linkedin/gobblin,aditya1105/gobblin,jack-moseley/gobblin,linkedin/gobblin,pcadabam/gobblin,jinhyukchang/gobblin,arjun4084346/gobblin,arjun4084346/gobblin,aditya1105/gobblin,ibuenros/gobblin,arjun4084346/gobblin,jack-moseley/gobblin,jinhyukchang/gobblin,linkedin/gobblin,abti/gobblin,ibuenros/gobblin,linkedin/gobblin,arjun4084346/gobblin,ibuenros/gobblin,pcadabam/gobblin,arjun4084346/gobblin,abti/gobblin,ibuenros/gobblin,aditya1105/gobblin,pcadabam/gobblin,aditya1105/gobblin,ibuenros/gobblin,jack-moseley/gobblin,linkedin/gobblin,aditya1105/gobblin,shirshanka/gobblin,aditya1105/gobblin,abti/gobblin,linkedin/gobblin,pcadabam/gobblin,shirshanka/gobblin,jinhyukchang/gobblin,shirshanka/gobblin,pcadabam/gobblin,abti/gobblin,jinhyukchang/gobblin,shirshanka/gobblin,abti/gobblin,jinhyukchang/gobblin,pcadabam/gobblin,abti/gobblin,jack-moseley/gobblin,shirshanka/gobblin,jack-moseley/gobblin,jinhyukchang/gobblin