fix(docs): remove out-dated information about CI review comments

 - Fix the name of the user account under which the CI bot posts
   review comments.

 - The CI has now transitioned to trustedfirmware.org so CI results
   are publically accessible.

Signed-off-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Change-Id: I53dd93e200c9e119b5df6bbaf2644485cde57ce5
1 file changed