[bulk] re:zero

create alias re:zero -> re:zero_kara_hajimeru_isekai_seikatsu
create alias re_zero -> re:zero_kara_hajimeru_isekai_seikatsu

Link to request

http://danbooru.donmai.us/explore/posts/missed_searches

besides, re:zero seemed to be used a lot in other media

The bulk update request #733 has been approved.