Added CSS styles to assignments

widget_tee_jays_angelos/assignments/static/assignments/style.css

+h1 {
+  color: blue;
+  font-weight: bold;
+}
+
+body {background-color: coral;}

widget_tee_jays_angelos/assignments/templates/assignments/detail.html

 {% extends 'base.html' %}
-
+{% load static %}
+<link rel="stylesheet" type="text/css" href="{% static 'assignments/style.css' %}"
 {% block content %}
   <h1> {{course}} {{course.course_title}}</h1>
   <li> Name: {{assignment.name}} </li>

widget_tee_jays_angelos/assignments/templates/assignments/index.html

 {% extends 'base.html' %}
-
+{% load static %}
+<link rel="stylesheet" type="text/css" href="{% static 'assignments/style.css' %}"
 {% block content %}
   <h1> Assignments Per Course </h1>
   {% if course_list %}