Update mail announcement template
Update mail announcement template

Related to #54

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