init layout

app/course/views.py

 # Create your views here.
 
 def index(request):
-   return render(request, 'base.html')
+   return render(request, 'course/list.html')

app/templates/course/list.html

+{% extends 'base.html' %}                                                          
+{% load static %}
+{% block content %}
+
+<div class="text-xl font-semibold inline-block">title</div>
+<div class="divider mt-2"></div>
+
+{% endblock %}