Adapt the doc and output to new name of the keys.

doc/66-deeper.md

doc/66-enable.md

doc/66-frontend.md

doc/66-instantiated-service.md

doc/66-module-creation.md

doc/66-service-configuration-file.md

doc/66-start.md

doc/66-tree.md

src/include/66/service.h

src/lib66/enum/enum.c

src/lib66/module/regex_replace.c

src/lib66/parse/parse_append_logger.c

src/lib66/parse/parse_bracket.c

src/lib66/parse/parse_compute_resolve.c

src/lib66/parse/parse_get_section.c

src/lib66/parse/parse_mandatory.c

src/lib66/parse/parse_store_logger.c

src/lib66/parse/parse_store_start_stop.c

src/lib66/write/write_logger.c