What button do i press to subscribe to a manga in order for it to give me a notifaction if ever it is updated

Just press the "now reading" or "already read" to get notifications

you have to mark the manga as "now reading" or " already read". the buttons are on the mainpage to every manga ( my english sucks so i hope you get what i mean :) )

Just under the orange "Start Reading" button (right under the manga cover) there are options to mark it as "Want to Read" "Now Reading" or "Already Read" Using any of them will usually notify you of a manga's updates.

Under the cover picture in a manga's main page you can see it gives you options to say whether you've read it, are reading or want to read the manga. Press "now reading" and add it so it notifies you every time there is an update.