Update PROJECT_REVIEW.md

PROJECT_REVIEW.md

@@ -216,19 +216,13 @@ This is a comprehensive **Exam Question Generator** system built with Python and
    - Deployment guide
    - Configuration guide
 
-## Overall Assessment
-
-**Grade: B+**
-
-The project is well-structured and functional. The codebase shows good understanding of NLP concepts and Flask web development. The main issues were code cleanup (unreachable code) and minor syntax errors, which have been fixed.
-
 ### Key Strengths
 - Comprehensive feature set
 - Good architecture
 - Error handling
 - User-friendly interface
 
-### Key Weaknesses
+### Future Improvements
 - Some code duplication
 - Missing tests
 - Configuration management