Hi Arii88, welcome to the Sekaipedia! We currently do not have any editing guides on the wiki, but feel free to check out our Discord if you have any questions!
HAPPY BIRTHDAY!!.jpg[edit source]
I noticed that you've uploaded an image, but it is a duplicate version of a file that already exists, File:Saki 17 art.png. I have deleted the file you've uploaded due to Saki's birthday art already existing.