release_process: fix Torrent-related issues
Type of work:
[Mandatory release-process-induced kibi-bug.]
Two simple issues with Torrent(s) in the current documentation:
- Singular is used across the document, while we have two Torrents now (IMG+ISO).
transmission-remotecommand is missing in a command-line (that's been the case since that paragraph was added).
Patches attached for now; might look at MRing them later on, but not in the middle of releasing.