Hi guys i just wanna know how to upload a manga in mangago

For new manga: https://www.mangago.me/read-manga/mangago_how_to_guide/uu/br_chapter-4274/pg-1/
For new ch: https://www.mangago.me/read-manga/mangago_how_to_guide/uu/br_chapter-4290/pg-1/

Thank chuuu much ヾ(❀╹◡╹)ﾉ~ hope u a good day