updated error message for students not found

src/main/java/com/StudentServices/MarksService/controller/StudentMarksController.java

@@ -34,7 +34,7 @@ public class StudentMarksController {
     ResponseEntity<StudentMarks> findStudentMarksById(@PathVariable String id) throws ResourceNotFoundException {
 
         StudentMarks sm = studentService.getStudentById(id).
-                orElseThrow( () -> new ResourceNotFoundException("Student Marks not found... " + id));
+                orElseThrow( () -> new ResourceNotFoundException("Student was not found: " + id));
         return ResponseEntity.ok(sm);
     }
 
@@ -45,7 +45,7 @@ public class StudentMarksController {
     @DeleteMapping("remove/{id}")
     ResponseEntity<String> deleteStudentMarkById(@PathVariable String id) throws ResourceNotFoundException{
         StudentMarks sm = studentService.getStudentById(id).
-                orElseThrow( () -> new ResourceNotFoundException("Student Marks not found... " + id));
+                orElseThrow( () -> new ResourceNotFoundException("Student was not found: " + id));
 
         studentService.deleteStudent(sm);