fixed name convention of the model

widget_aguandhischipmunks/assignments/admin.py

 from django.contrib import admin
+from .models import Assignment, Course
 

widget_aguandhischipmunks/assignments/models.py

@@ -9,7 +9,7 @@ class Course(models.Model):
 
 # Assignments
 # name; description; course; perfect_score; passing_score
-class Assignments(models.Model):
+class Assignment(models.Model):
     name = models.CharField(max_length = 100)
     description = models.CharField(max_length = 1000)
     course = models.ForeignKey(Course, on_delete = models.CASCADE)