Update app.py

app.py

@@ -25,8 +25,8 @@ def promptgen(choice, num, artist):
     if prompt[rand-1].startswith('art by') and artists_num < artist:
         artists_num +=1 
         generated.append(prompt[rand-1])
-	elif not prompt[rand-1].startswith('art by'):
-		generated.append(prompt[rand-1])
+    elif not prompt[rand-1].startswith('art by'):
+        generated.append(prompt[rand-1])
   print(' '.join(set(generated)) + '\n')
   return ' '.join(set(generated))