Many thanks for working on this.
Have you already been given log-in credentials (eg. user name and
temporary password) for the ODF Authors website? If not, I am asking
here that someone with the necessary administration rights to arrange
this for you.
When or if you have access to the ODF Authors website, rename your
updated files to something similar to GS6001-
Introducing_LibreOffice_JR_20170809.odt (the JR I am guessing are the
initials you wish to use) then log-in to the ODF Authors website and
upload them to the LibreOffice → English → Getting Started → Draft LO
It is best if you upload your own work, but if you have any difficulties
please write back and I will try to help, or you can email your files to
me and I will upload them for you.