move robots.txt content to new "going live" section #3666
move robots.txt content to new "going live" section #3666

Other tweaks, including making the example file downloadable.

jacksonokuhn/dataverse,JayanthyChengan/dataverse,JayanthyChengan/dataverse,JayanthyChengan/dataverse,jacksonokuhn/dataverse,jacksonokuhn/dataverse,jacksonokuhn/dataverse,JayanthyChengan/dataverse,JayanthyChengan/dataverse,jacksonokuhn/dataverse,JayanthyChengan/dataverse,jacksonokuhn/dataverse,jacksonokuhn/dataverse,JayanthyChengan/dataverse,JayanthyChengan/dataverse,jacksonokuhn/dataverse