[README] update status 'Projection Push Down' to done
@@ -86,7 +86,7 @@ Note:
- [x] Query Optimizer
- [x] Predicate Push Down
- [x] Limit Push Down
-- [ ] Projection Push Down (WIP)
+- [x] Projection Push Down
- [x] Type coercion
- [x] Parallel Query Execution
- [x] Distributed Query Execution
