update documentation with release 1.3.1
update documentation with release 1.3.1

kneubi/fscrawler,kneubi/fscrawler,kneubi/fscrawler,dadoonet/fsriver,dadoonet/fscrawler,dadoonet/fsriver,dharmendrak/fsriver,dadoonet/fscrawler,dadoonet/fscrawler,dharmendrak/fsriver,dadoonet/fsriver