Proposal : Update Anime Norakuro Ittouhei source

Proposal details

This proposal will make the following change(s):

Update the source of the anime Norakuro Ittouhei

Change the source from Unknown to Manga

Based on the following reason: Missing

With the source: https://myanimelist.net/anime/30019/Norakuro_Ittouhei?q=%20Norakuro%20Ittouhei&cat=anime