Firet upload your images on ingbox.com or imgbur.com then copy the image link .You have to sign in mangago then if you click on any manga on the top left side there will be a flag icon click on that then click on upload manga then type your man ga name ,chp no and paste the link of your image done.
HOW DO I: upload manga/hua/hwa
try Suujin's explaination:
http://www.mangago.zone/home/photo/5318652/
click on any manga and on the left side (like on the edge) of the screen u will see a flag. click that and options will appear (like upload a manga, delete a chapter, etc.)
Can someone please help me? I am currently picking up a dropped manwha and I’m now cleaning and translating it, but I have no idea how to actually update it on the site...