doc: kresd.systemd belongs in section 7 of the manual
"man man" says that the sections are:
1 Executable programs or shell commands 2 System calls (functions provided by the kernel) 3 Library calls (functions within program libraries) 4 Special files (usually found in /dev) 5 File formats and conventions eg /etc/passwd 6 Games 7 Miscellaneous (including macro packages and conventions), e.g. man(7), groff(7) 8 System administration commands (usually only for root) 9 Kernel routines [Non standard]
Since there is no command named kresd.system it does not belong in section 8.
Section 7 includes conventions and useful patterns like gitcli(7), which seems more similar to the documentation that is supplied in kresd.systemd.