BCA: DBMS: unit 2: make images into link

Background and more is lost otherwise.

HTML Tags don't work for background

NEP2020/2024/BCA/3rdsem/dbms/unit2/imp.md

@@ -30,16 +30,14 @@ A.
 - University
 - Library
 
-A. University 
-    ![University](assets/university.svg)
+A. University: [Image](assets/university.svg)
 
-Library
-    ![Library](assets/library.svg)
+Library: [Image](assets/library.svg)
 
 ### Q11. What are Relationship types, set and degrees of relation?
 A. 
 ### Q12. What is a relationship? Give an example of 1 to 1 and 1 to many.
 A. 
 
 ## Source:
-- Questions: Dictated in class
+- Questions: Dictated in class