Proposal : Update Manga Ping Pong published date

Proposal details

This proposal will make the following change(s):

Update the published date of the manga Ping Pong

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 : 30
Month : 7
Year : 1996
-
End Date :
Day : 30
Month : 8
Year : 1997

Based on the following reason: missing

With the source: https://it.wikipedia.org/wiki/Ping_Pong_(manga)