Add episode art url field

E.S. Rosenberg a.k.a. Keeper of the Keys · E.S. Rosenberg a.k.a. Keeper of the Keys · commit e693d8f5d64a · 2020-03-31T03:58:25.000+03:00
diff --git a/src/gpodder/model.py b/src/gpodder/model.py
@@ -94,7 +94,7 @@ class EpisodeModelFields(minidb.Model):
     chapters = minidb.JSON
     subtitle = str
     description_html = str
-
+    episode_art_url = str
 
 class PodcastModelFields(minidb.Model):
     title = str
