Add my own shownotes to local folder audio

Hello readers. I have been using Antennapod ever since i left apple at iOS 6.1.6 and i am manually adding alcoholic recovery audio related stuff to listen to in my spare time. I would like to add shownotes as reminders when i listen or prior to listening. Also, some shows i subscribe to via RSS leave their shownotes empty while i can find them online. Wish i could add shownotes to a podcast that doesn’t add their own.