Proposal : Update Anime Sekai no Owari ni Shiba Inu to source

Proposal details

This proposal will make the following change(s):

Update the source of the anime Sekai no Owari ni Shiba Inu to

Change the source from Unknown to Manga

Based on the following reason: Its on myanimelist

With the source: https://myanimelist.net/manga/116765/Sekai_no_Owari_ni_Shiba_Inu_to?q=Sekai%20no%20Owari%20ni%20Shiba%20Inu%20to&cat=manga