Added headers to students.html

src/main/resources/templates/courses/entity/students.html

@@ -10,6 +10,11 @@
     <h1>Students in <span th:text="${course.getName()}"></span></h1>
 
     <table>
+        <tr>
+            <th>Student</th>
+            <th>Student Number</th>
+            <th>Email Address</th>
+        </tr>
         <tr th:each="student: ${course.getStudents()}">
             <td>
                 <a th:href="@{/students/{id}(id=${student.getId()})}"><span th:text="${student.getFullName()}"></span></a>