fix(course): removed required on course abbreviation

docs/docs.go

-// Code generated by swaggo/swag. DO NOT EDIT
+// Code generated by swaggo/swag. DO NOT EDIT.
+
 package docs
 
 import "github.com/swaggo/swag"

model/web/course/request.go

@@ -27,7 +27,7 @@ type AddCourseRequestPayload struct {
 	Email string `json:"email" validate:"required,email" example:"someone@example.com"`
 
 	// Course Name Abbreviation
-	Abbreviation string `json:"abbreviation" validate:"required"`
+	Abbreviation string `json:"abbreviation"`
 }
 
 // DeleteCourse Request Payload