add suggested answers to anatomy

anatomy/models.py

@@ -3,6 +3,7 @@ import json
 from django.contrib.contenttypes.fields import GenericRelation
 from django.db import models
 from django.utils import timezone
+from django.contrib.postgres.fields import ArrayField
 
 from django.core.files.storage import FileSystemStorage
 from django.conf import settings
@@ -93,6 +94,8 @@ class AnatomyQuestion(QuestionBase):
 
     answer_help = models.TextField(default="", blank=True, null=True, help_text="Helpful information for marking")
 
+    answer_suggest_incorrect = ArrayField(models.CharField(max_length=255), default=list)
+
     examination = models.ForeignKey(
         Examination, on_delete=models.SET_NULL, null=True, blank=True
     )