Wiki-Sprint3.md

@@ -45,12 +45,13 @@
     The administrator can edit the information of all courses, teachers, and students.
 
 ## Appendix: Relationships between elements in the database
-All information is classified as 6 tables: s_admin, s_selected_course, s_course, s_clazz, s_student, s_teacher. Their elements are listed as follow:
-s_admin: uses **id** and **name** as primary key(used to uniquely identify a record in a table), and stores password and status at the same time. 
-s_student: uses **id** and **sn** as primary key and stores name, password, clazz_id and photo at the same time.
-s_selected_course: uses **id** as primary key and **must stay the same as id in s_student**, and stores student_id and course_id at the same time.
-s_teacher: uses **id** and **sn** as primary key and stores name, password, clazz_id and photo at the same time.
-s_course: uses **id** as primary key and **must stay the same as id in s_teacher**, and stores name, teacher_id, course_date, selected_num, max_num and info at the same time. 
+All information is classified as 6 tables: s_admin, s_selected_course, s_course, s_clazz, s_student, s_teacher. 
+Their elements are listed as follow:
+- s_admin: uses **id** and **name** as primary key(used to uniquely identify a record in a table), and stores password and status at the same time. 
+- s_student: uses **id** and **sn** as primary key and stores name, password, clazz_id and photo at the same time.
+- s_selected_course: uses **id** as primary key and **must stay the same as id in s_student**, and stores student_id and course_id at the same time.
+- s_teacher: uses **id** and **sn** as primary key and stores name, password, clazz_id and photo at the same time.
+- s_course: uses **id** as primary key and **must stay the same as id in s_teacher**, and stores name, teacher_id, course_date, selected_num, max_num and info at the same time. 
 ![Relationship](uploads/9c2bfd6dc06df7887c6845205e5dcb86/Relationship.png)
 
 ### author: Chen Ziyang & Wu Xuan