Change reference to module-tools to reference to the console command
AFAIK currently there is no OTOBO specific repository for the module tools. So let's refer to the console command for generating documentation.
bes:~/devel/OTOBO/CodePolicy (master)$ grep -r module-tools .
Übereinstimmungen in Binärdatei ./doc/en/.CodePolicy.xml.swp
./doc/en/CodePolicy.xml: <!-- You can build this chapter by running module-tools/Config2Docbook.pl -->