update readme

readme.md

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+QA the the following APIs provide in the postman collection QA.postman_collection.json
+
+- List Books
+- Get A Book
+- Create Book
+- Update Book
+- Delete Book
+- Create Author
+
+If Api requires authentication, Call the Authenticate API to get the token.
+Then set the Authorization header (bearer token)
+Authorization Bearer <token>
+
+
+*** Report all issues found ***
+
+
+
+
 
 **BASE** : https://mkdlabs.com
+
 **Credential**
  - role : admin,
  - email: adminlibrary3@manaknight.com.