docs: improve roadmap table for portfolio

README.md

@@ -57,16 +57,16 @@ python main.py
 
 ## Lộ trình
 
-| Tuần | Nội dung | Trạng thái |
-|------|----------|------------|
-| 1 | Minimal RAG pipeline (ChromaDB) | ✅ |
-| 2 | Two-tier parsing (pypdf + EasyOCR) | ✅ |
-| 3 | Hybrid search (Qdrant + BM25 + RRF) | ✅ |
-| 4 | Reranking + Citation | 🔄 |
-| 5 | Vietnamese optimization | ⏳ |
-| 6 | RAGAS evaluation | ⏳ |
-| 7 | FastAPI + UI | ⏳ |
-| 8 | Docker + Deploy | ⏳ |
+| Week | Feature | Status |
+|------|---------|--------|
+| 1 | Minimal RAG pipeline | ✅ Done |
+| 2 | Two-tier document parsing (pypdf + EasyOCR) | ✅ Done |
+| 3 | Hybrid search (Qdrant + BM25 + RRF) | ✅ Done |
+| 4 | Reranking + Citation | 🔄 In progress |
+| 5 | Vietnamese NLP optimization | ⏳ Planned |
+| 6 | RAGAS evaluation framework | ⏳ Planned |
+| 7 | FastAPI + UI | ⏳ Planned |
+| 8 | Docker + Deploy | ⏳ Planned |
 
 ## Dataset