Proposal : Update Manga Butanero ninja published date

Proposal details

This proposal will make the following change(s):

Update the published date of the manga Butanero ninja

Change the published date from :
Start Date :
Day : Unknown
Month : Unknown
Year : Unknown
-
End Date :
Day : Unknown
Month : Unknown
Year : Unknown

to

Start Date :
Day : 3
Month : 8
Year : 2020
-
End Date :
Day : Unknown
Month : Unknown
Year : Unknown

Based on the following reason: missing

With the source: https://www.webtoons.com/es/challenge/butanero-ninja/list?title_no=494070&webtoon-platform-redirect=true