binman: doc: fix reference tag placement for Logging section

Move BinmanLogging reference tag after section "Signing FIT container
with private key in an image" and just before section "Logging".

Fixes: 0f40e23fd22 ("binman: add documentation for binman sign option")
Signed-off-by: Massimo Pegorer <massimo.pegorer+oss@gmail.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
1 file changed