Minor tweaks to README
Minor tweaks to README

rbdr/exiv2node,m0g/exiv2node,dberesford/exiv2node,dberesford/exiv2node,rbdr/exiv2node,SoftBricks/exiv2node,m0g/exiv2node,rbdr/exiv2node,dberesford/exiv2node,m0g/exiv2node,SoftBricks/exiv2node,SoftBricks/exiv2node