For the next round, please include the whole file(s) as explained in https://wiki.freebsd.org/Phabricator#Create_a_Revision_via_Web_Interface. This lets reviewers make edit suggestions directly instead of laboriously explaining them.
s/If you are/If/ per FDP primer style guide.
"Downloading happens under the hood, thus the command takes a bit longer to run."
s/listing, it contains/listing containing/
"and pointers to the root directory tree and to the parent commit(s)" if I understand what you mean correctly (lowest directory in the tree below which all modified files are, reference to the single commit if not a merge, or to both or however many commits if a merge).
"the kind, number, and or size of objects downloaded"
"the branch requested"